Safeguarding Children

Women's Sports & Athletic Opportunity

Biological males competing in women's sports eliminate fair competition and safety for female athletes.

Biological males competing in women's sports eliminate fair competition and safety for female athletes.

No pressure. Just a clear path forward.

Fair Play or Foul? Why Biological Sex Still Matters in Women's Sports

Women's sports exist as separate categories for one simple reason: male puberty confers significant, lasting athletic advantages that make fair competition between males and females impossible in most sports.

This isn't controversial biology—it's observable reality. It's why we have women's sports in the first place.

Yet policies allowing biological males to compete in women's sport categories based on gender identity or limited testosterone suppression are systematically dismantling fair competition for female athletes. Women who have trained their entire lives are losing medals, scholarships, records, and advancement opportunities to male competitors whose physical advantages make victory almost inevitable.

Female athletes who raise concerns about fairness are accused of bigotry. Those who speak up risk losing sponsorships, team positions, and career opportunities. Coaches and parents who try to protect girls face social and professional consequences.

The message is clear: women's athletic opportunities matter less than validating male identity claims. Competitive fairness for females is negotiable.

This isn't just unfair—it's the erasure of women's sports as a meaningful category.


Why Women's Sports Exist

Understanding why policies allowing males in women's sports are problematic requires understanding why sex-segregated sports exist at all.


The Biological Reality:

Male puberty produces significant physical changes that create athletic advantages:



Muscle Mass and Strength:

  • Males develop approximately 50% more upper body muscle mass than females

  • 40% more lower body muscle mass

  • Greater muscle fiber density

  • Different muscle composition favoring power and strength

Skeletal Differences:

  • Larger skeletal frame

  • Different biomechanics (hip angle, limb length ratios)

  • Greater bone density

  • Larger hands and feet (advantage in many sports)

Cardiovascular Advantages:

  • Larger hearts and lungs

  • Greater VO2 max (oxygen processing capacity)

  • More hemoglobin (oxygen-carrying capacity)

  • Better sustained aerobic performance

Other Physiological Differences:

  • Greater height on average

  • Different center of gravity

  • Faster twitch muscle fibers

  • More explosive power generation


What This Means:

These differences mean that in most sports, average male performance exceeds elite female performance. This isn't subtle—the gaps are substantial:

  • Men's 100m sprint record: 9.58 seconds (Usain Bolt)

  • Women's 100m sprint record: 10.49 seconds (Florence Griffith-Joyner)

  • Men's marathon record: 2:00:35 (Eliud Kipchoge)

  • Women's marathon record: 2:11:53 (Tigist Assefa)

  • Men's high jump record: 2.45m (Javier Sotomayor)

  • Women's high jump record: 2.09m (Stefka Kostadinova)

In sports involving strength, speed, or power, high school boys routinely outperform Olympic female athletes. The U.S. Women's National Soccer Team—world champions—regularly trains against and loses to high school boys' teams.


Women's Sports · Peer-Reviewed Science · ★★★★★

The male-female athletic performance gap — by event and sport

Male athletes outperform female athletes across every sport and distance studied. The gap averages ~10% in running and swimming, rises to 17.5% in field events, and exceeds 20% in weightlifting. Crucially, this gap has been stable since approximately 1990 — it is not closing. Hover over any bar to see the world record source.

~10%
Performance gap in every Olympic running event
Stable since 1990. Rohrer 2024; Hallam & Amorim 2022.
5–10%
U18 boys' world records are faster than women's all-time world records
In every Olympic track event, the world record for 15–17 year old boys is faster than the best time ever recorded by a woman. Erriyon Knighton (17) ran 100m in 9.97s; the women's all-time world record is 10.49s.
36.8%
Maximum gap in weightlifting (heavy classes)
Range 8.7–36.8% across weight categories. Thibault et al. 2010.
Why this matters for women's sport
A 10% performance advantage is not marginal — it is the difference between a world champion and an also-ran. When a male athlete competes in the female category, they bring this structural advantage with them regardless of hormone treatment. This is why governing bodies like World Athletics banned male-puberty athletes from female events in 2023.
Sources: Thibault et al. 2010 (PMC3761733) · Hallam & Amorim 2022 (PMC8764368) · Rohrer 2024 (Frontiers Physiology) · World Athletics & World Aquatics official world records
Running & TrackSwimmingField & Other— hover bars for world record source
Running & Track
100m sprint8.7%
400m9.6%
800m10.9%
1500m9.9%
5000m10.1%
Marathon7.2%
Swimming
100m freestyle9.9%
400m freestyle6.9%
Swimming (avg)8.9%
Field Events
Jumps (avg)17.5%
Other Sports
Cycling (avg)8.7%
Weightlifting (avg)20%
0%5%10%15%20%25%


The Solution: Sex Categories

Sports created separate female categories to allow women to compete fairly and achieve athletic excellence. Without these categories, women would be almost entirely excluded from competitive sports.

This isn't discrimination against males—it's recognition of biological reality that enables female athletic opportunity.


The Current Policy Landscape

Increasingly, sports organizations allow biological males to compete in women's categories based on:

  1. Self-Identification: Some youth and amateur leagues allow males to compete as females based solely on gender identity declaration.

  2. Testosterone Suppression: Some organizations require males to suppress testosterone below certain levels for a specified period (typically 12 months).

  3. Surgery: Some organizations previously required genital surgery, though this is becoming rarer.

  4. The Problem: None of these approaches eliminate the advantages conferred by male puberty.


Why Testosterone Suppression Doesn't Create Fair Competition

The most common policy—allowing males who have suppressed testosterone to compete in women's categories—is based on flawed assumptions. Multiple studies examine whether testosterone suppression eliminates male athletic advantages:


Hilton & Lundberg (2021) - Sports Medicine:

Comprehensive review found:

  • Males retain significant advantages even after testosterone suppression

  • Muscle mass decreases modestly but remains well above female norms

  • Strength decreases approximately 5% - far less than the male advantage

  • Cardiovascular advantages remain largely intact

  • Skeletal advantages (height, bone density, limb ratios) are permanent


Harper et al. (2021) - British Journal of Sports Medicine:

Study of transgender military personnel found:

  • After 2+ years of testosterone suppression, males retained substantial strength advantages

  • Running times improved modestly but males still significantly outperformed females

  • Push-up and sit-up performance retained male advantage


The Biology:

This makes sense biologically. Testosterone suppression:

Can Reduce: Some muscle mass, some strength, some hemoglobin levels

Cannot Change: Skeletal structure, height, wingspan, hand/foot size, pelvic angle, lung volume, heart size, tendon and ligament structure developed during male puberty

Males who undergo puberty develop permanent advantages that testosterone suppression cannot eliminate. A male who was 6'2" with large hands, long limbs, and dense bones doesn't become 5'6" with small hands when testosterone is suppressed.


Real Cases: Women Losing to Male Competitors

This isn't theoretical. Female athletes are losing real opportunities to male competitors:


Swimming - Lia Thomas:

William Thomas competed on the University of Pennsylvania men's swim team for three years, ranking around 450th nationally in men's competition.

After transitioning and competing in women's events (following NCAA testosterone suppression requirements), Thomas:

  • Won the NCAA Division I Women's 500-yard freestyle championship

  • Set numerous pool records in women's events

  • Displaced female swimmers who had trained their entire lives for these opportunities

  • Stood on podiums where biological females should have stood

Female competitors described watching Thomas—taller, with larger hands and feet, with different body structure—dominate races. They described the unfairness of competing against someone with male physical advantages. They described being afraid to speak up for fear of being labeled transphobic.


Track and Field - Multiple Cases:

Males competing in women's track and field have won state championships, broken records, and taken podium positions from female competitors across multiple U.S. states and internationally.

In Connecticut, males took 15 state championship titles that would have gone to female runners. Female athletes filed a lawsuit (later dismissed on technical grounds) arguing their rights under Title IX were being violated.


Cycling - Multiple International Cases:

Male cyclists competing in women's categories have won national championships, international events, and set records in multiple countries.


Weightlifting - Laurel Hubbard:

At age 43, Laurel Hubbard (a biological male) competed in the Tokyo Olympics in women's weightlifting. While Hubbard didn't medal, the participation displaced a female athlete who would otherwise have competed.

Hubbard had competed as a male weightlifter years earlier before transitioning.


Combat Sports:

Males competing against females in combat sports (MMA, boxing, martial arts) create particular safety concerns beyond fairness. Male bone density, strength, and striking power can cause serious injury.

Fallon Fox, a male MMA fighter competing in women's divisions, fractured the skull of female opponent Tamikka Brents during a 2014 fight. Brents later stated: "I've fought a lot of women and have never felt the strength that I felt in a fight as I did that night."


When males compete in women's sports, female athletes lose:



Podium Positions:

Every medal won by a male competitor is a medal not won by a female athlete. That female athlete loses not just recognition, but everything that comes with it—scholarships, sponsorships, career advancement, historical recognition.

Records:

Records set by male competitors stand in record books as "women's records"—erasure of actual female achievement and creation of unbeatable standards for future female athletes.

Scholarship Opportunities:

College sports scholarships provide education access for many young women. When males take roster positions and scholarship money, female athletes lose these opportunities.


Professional Advancement:

Success in amateur and college sports can lead to professional opportunities, sponsorships, and careers. Males taking these positions block female athletes' career paths.

Simply Participating:

Team rosters have limited positions. When males take spots, females are cut from teams entirely—losing the chance to compete at all.

The Joy of Fair Competition:

Beyond tangible losses, there's the psychological impact of knowing you cannot win fairly. Female athletes describe training their hardest and still losing to male competitors whose advantages have nothing to do with training or skill.


Women's Sports · HeCheated.org · Documented through 2025

The scale of male participation in female sport

Women's sport exists as a separate category because male puberty confers permanent physiological advantages that make fair competition impossible. These numbers document what happens when that boundary is removed — real female athletes losing real opportunities to male competitors.

On this source
Data compiled by HeCheated.org, an advocacy database. Each athlete is verified via public records: past results in men's categories, name changes, news reporting, and personal declarations. The database methodology is publicly documented. These figures represent a minimum — many cases go undocumented.
0+
Male athletes documented competing in female sport
1,014 named + 225+ unnamed. Each verified via public records.
hecheated.org — athletes
0+
Competition events entered in female categories
Across 28 sports. Each entry displaces a female competitor.
hecheated.org — results
0+
1st place finishes taken from female athletes
32% of all events entered resulted in a male taking first place.
hecheated.org — results
0+
Awards and honours taken from female athletes
MVPs, player-of-match, championships, league titles.
hecheated.org — awards
0+
Female records currently held by male athletes
Including 39+ world records. 678+ records set in total.
hecheated.org — records
$0.0M+
In prize money taken from female athletes
927+ women robbed of prize winnings, scholarships, and sponsorships.
hecheated.org — prize money
What this means
These numbers grow every time a sporting body adopts gender self-identification policy instead of sex-based categories. Behind every statistic is a female athlete who trained for years, competed fairly, and was displaced — from a podium, a record, a scholarship, or a prize cheque — by someone who had the permanent physiological advantages of male puberty.


Safety in Contact Sports

In sports involving physical contact—rugby, hockey, basketball, soccer, martial arts—male competitors create injury risk beyond fairness concerns.


The Physics:

Real Injuries:

The Risk Calculation:

Males have:

  • Greater bone density (harder bones = harder impacts)

  • More muscle mass (more force generation)

  • Different biomechanics (higher center of gravity, different momentum)

  • Greater weight on average

When males collide with females in contact sports, the injury risk is significant.

Female rugby players have suffered serious injuries—broken bones, concussions, torn ligaments—in collisions with male players.

In high school basketball, female players have been injured by male competitors whose size and strength advantages created dangerous situations.

Parents are faced with impossible choices: allow daughters to play sports with injury risk from male competitors, or pull them from sports entirely.

Female athletes shouldn't have to choose between participating in their sport and avoiding serious injury from unfairly matched competitors.



The Changeroom Problem

Beyond competition itself, there's the issue of shared facilities.


Female athletes on teams with male competitors must:

  • Change clothes in presence of males

  • Shower with males present

  • Share intimate team spaces with males

This violates privacy and creates discomfort, particularly for adolescent girls navigating puberty and developing sexuality.

Some teams create separate changing arrangements for male competitors—but this essentially concedes that biological sex matters for privacy even while claiming it doesn't matter for competition.


The Silencing of Female Athletes

Female athletes learn: stay silent about unfairness, or face destruction of your athletic career and reputation. Your concerns don't matter. Fairness for you is negotiable.

This is a form of institutional betrayal—the sports organizations meant to protect female athletes' interests are sacrificing those interests to ideology.


The Consequences of Speaking:

Female athletes who raise concerns about male competitors face:

  1. Loss of Sponsorships: Companies drop athletes who express these views, fearing backlash.

  2. Team Removal: Athletes have been removed from teams or had scholarships threatened.

  3. Social Ostracism: Teammates, coaches, and communities turn against athletes who speak up.

  4. Media Attacks: Athletes are called bigots, transphobes, and hateful.

  5. Career Destruction: Future opportunities disappear when athletes are labeled controversial.

Women's Sports · HeCheated.org · ★★★ Advocacy Database

1st place finishes taken from female athletes — by sport

Male athletes competing in female categories have claimed first place finishes across 28+ sports, from Olympic events to high school championships. The ten sports shown here represent the categories with the most documented wins. Each sport name links directly to HeCheated's verified results page for that category.

On this source
Data compiled by HeCheated.org — an advocacy database. Each result is verified via public records, official meet results, news reporting, and athlete declarations. Figures represent a documented minimum — many competitions go unreported. Numbers are updated as new cases are documented. Per-sport figures are drawn from the individual sport results pages.
6,251+
Total 1st place finishes across all sports
28+
Sport categories with documented cases
19,243+
Total events entered in female categories
1,239+
Male athletes documented competing
What this means
No sport is insulated from this issue. Swimming and track see the highest numbers because they are individual events where one male athlete can accumulate dozens of wins. But the pattern extends from Olympic weightlifting to high school rugby — wherever gender self-identification replaces sex-based eligibility, female athletes lose competitive opportunities.
Source: HeCheated.org sport results pages — each sport links to its documented results. Overall totals from hecheated.org/Total_results.html · Per-sport figures are indicative and should be verified against the live pages before publication.
Documented 1st place finishes by sport — click sport name to view source
Swimming1,100+
Lia Thomas (NCAA) · Hannah Caldas (world masters records)
CT high school records · Caster Semenya (DSD) · multiple state championships
Emily Bridges (UK national) · Rachel McKinnon/Veronica Ivy (world masters)
Laurel Hubbard (Commonwealth, Olympics) · Mary Gregory (nationals)
Fallon Fox (MMA) · multiple judo & BJJ titles
Multiple marathon & road race age category wins
Rowing290+
Indoor & outdoor events across collegiate & masters levels
Hannah Mouncey (AFLW) · multiple club rugby titles
Transgender women in tennis, badminton, squash
Soccer160+
Club and collegiate competition across multiple countries
02505007501,000+
Note: Per-sport figures shown here are approximations based on proportional distribution of documented totals. Exact figures should be verified against the live HeCheated sport pages before publication. Overall totals (6,251+ wins, 19,243+ events) are confirmed.



Martina Navratilova:

Tennis legend and LGBT rights advocate was dropped as an ambassador for Athlete Ally after expressing concerns about fairness in women's sports.


Sharron Davies:

Olympic swimmer faces ongoing harassment for advocating for fair competition in women's sports.


Riley Gaines:

College swimmer who competed against Lia Thomas faces threats, protests, and physical assault for speaking about her experience.



What Sports Organizations Are Doing

Different sports organizations have adopted varying policies:



International Olympic Committee (2021):

Under the IOC’s new policy on the women’s category:

  • Eligibility for the female category at Olympic events is now limited to athletes classified by the IOC as “biological females.”

  • The IOC announced that transgender women are no longer eligible to compete in the female category at the Olympic Games beginning with the 2028 Los Angeles Olympics.

  • The policy also introduces a one-time SRY gene screening process for athletes competing in the women’s category.

World Athletics (Track and Field):

Transgender women who have undergone male puberty are not eligible to compete in the female category in international competition.

  • The policy applies regardless of testosterone suppression.

  • World Athletics also maintains regulations for athletes with certain Differences of Sex Development (DSD).

Swimming (FINA/World Aquatics):

In 2022, implemented policy requiring males to have transitioned before age 12 (before male puberty) to compete in women's elite events. Also created "open category" for those who don't meet criteria.

This is the most protective policy for female athletes among major sports organizations.

Rugby:

Transgender women are not permitted to participate in elite women’s rugby competitions.

  • World Rugby stated the policy was based on safety and performance considerations associated with contact sport and male puberty advantages.

  • Transgender men may participate subject to safety and medical requirements.

The Trend:

Organizations are being pressured—through lawsuits, advocacy campaigns, and media pressure—to adopt more "inclusive" policies allowing male participation with fewer restrictions.

Sports organizations often cave to this pressure despite evidence that such policies undermine fair competition for females.


In 2024, Alberta passed the Fairness and Safety in Sport Act, the first provincial legislation in Canada addressing this issue.

  • Aims to preserve fairness and safety in women's sports

  • Remains vague on specific implementation

  • Faces legal challenges from activists


The Significance:

Alberta's legislation represents recognition that:

  • This is a legitimate policy issue requiring governmental response

  • Fairness in women's sports deserves legal protection

  • Safety concerns in contact sports are real

However, the act's vagueness and ongoing legal challenges mean its practical impact remains uncertain.


Women's Sports · Policy Timeline · 2003–2025

How female sport was opened to male athletes — and what is being done about it

A series of policy decisions over two decades systematically removed the sex-based protections that make women's sport possible. Click any event to read the detail and access the official source.

Category opened to males
Policy decisions that removed sex-based eligibility requirements
Protection restored
Policy decisions that re-established sex-based protections for female athletes
Alberta context: Alberta's Fairness and Safety in Sport Act is one of the first provincial laws in Canada to restore sex-based eligibility in sport. In force September 1, 2025.
2003
Jan 2016
Jun 2017
Nov 2021
Mar 2023
2024


The False Framing

This debate is often framed as "transgender rights vs. women's rights" or "inclusion vs. exclusion." This is false framing.

What's at stake is whether they can compete in categories reserved for biological females—categories that exist specifically because of male physical advantages.

The Real Issue:

Not About:

The question isn't whether transgender individuals deserve dignity and respect. They do.
The question is: should male-bodied individuals compete in categories reserved for females?


That's About:

  • Fairness in competition

  • Opportunities for female athletes

  • The purpose and definition of women's sports categories

  • How we balance competing interests

Anyone's humanity or dignity

  • Whether transgender people should participate in sports (they should—in appropriate categories)

  • Excluding anyone from athletics entirely

Males who identify as women can compete in:

  • Male/open categories

  • Mixed categories where they exist

  • Recreational leagues with different priorities


What Policy Should Look Like

Protecting fair competition for female athletes doesn't require excluding anyone from sports entirely.



Female Sex-Based Categories:

Women's sports categories should be reserved for biological females. This is why these categories exist.

Open Categories:

Male categories can become "open" categories where anyone can compete. This provides opportunity for all while protecting female-specific categories.

Additional Categories Where Feasible:

Some sports might create additional categories (similar to weight classes in some sports) where feasible and appropriate.

Safety First in Contact Sports:

In sports involving physical contact, safety must be prioritized. Male participation in female contact sports creates unacceptable injury risk.

Recreational vs. Elite:

Organizations might distinguish between recreational leagues (where different priorities around inclusion might apply) and elite/competitive leagues (where fairness and safety require sex-based categories).


This isn't just about sports—it's about what women's sports represent.


Women's Sports as Achievement:

Women's sports categories were hard-won. They represent recognition that:

  • Women deserve athletic opportunities

  • Female achievement deserves celebration

  • Fair competition requires sex-based categories

Allowing males to dominate women's sports erases these achievements and returns to an era when female athletic excellence was impossible.


Title IX and Similar Protections:

In the U.S., Title IX requires equal athletic opportunities for women. Similar principles exist in Canadian equity law.

These protections were created specifically to ensure females—as a sex class—had opportunities to participate in athletics. Allowing males to take these opportunities violates the spirit and purpose of these protections.


Role Models and Inspiration:

Young girls need to see women achieving athletic excellence. When males dominate women's sports, those role models disappear.

Girls learn: even in categories supposedly reserved for you, males will outperform you. This is demoralizing and discouraging for female athletic participation.


The Path Forward

Protecting women's sports requires:

  1. Legal Protections: Legislation protecting sex-based categories in women's sports, similar to Alberta's attempt but more comprehensive and clear.

  2. Sports Organization Reform: National and international sports bodies must prioritize fairness for female athletes over ideological pressure.

  3. Protection for Speakers: Athletes, coaches, and parents who raise fairness concerns must be protected from retaliation.

  4. Public Education: Many people don't understand the magnitude of male physical advantages or why testosterone suppression doesn't eliminate them. Education about sports biology is needed.

  5. Standing Firm: Sports organizations must resist pressure to sacrifice female athletes' fairness on the altar of inclusion ideology.


Conclusion

Women's sports exist because biological sex creates athletic differences that make fair competition between males and females impossible in most sports.

This isn't opinion—it's measurable, observable reality.


Policies allowing males to compete in women's categories based on identity or limited testosterone suppression:

  • Undermine fair competition

  • Take opportunities from female athletes

  • Erase female achievement

  • Create safety risks in contact sports

  • Violate the purpose of sex-segregated sports


Female athletes deserve:

  • Fair competition against similarly-situated competitors

  • Opportunities earned through their training and talent

  • Physical safety in their sports

  • Recognition for their achievements

  • The right to speak about fairness without career destruction

None of this requires denying transgender individuals' humanity or excluding them from sports entirely. But it does require maintaining sex-based categories for female sports—the very reason those categories exist.

Women fought for decades for the right to compete, to achieve athletic excellence, to be recognized for their accomplishments. We cannot allow those victories to be erased by policies that treat fairness for females as negotiable.

Fair play isn't too much to ask. It's the foundation of sport itself.

Women's sports must remain for women—biological females. That's not discrimination. That's what makes women's sports possible at all.

What's Being Lost



Fair competition

  • Males who went through puberty competing in female categories

  • Physiological advantages in: strength, speed, power, height, lung capacity, bone density

  • Advantages remain even after testosterone suppression

  • Female athletes losing medals, scholarships, records, opportunities

Safety in contact sports

  • Risk of serious injury when males compete in rugby, hockey, martial arts, etc.

  • Males have greater bone density, muscle mass, impact force

  • Female athletes pressured to accept risk or leave sport

Scholarships and advancement

  • Limited spots for females going to biological males

  • Female athletes pushed off podiums, out of finals

  • Loss of college recruitment opportunities

  • Career advancement blocked

Privacy in locker rooms

  • Males in female changing facilities

  • Athletes uncomfortable changing/showering with males

  • Choice: accept male presence or don't participate

Ability to speak out


  • Athletes threatened with loss of sponsorship, team position

  • Called bigots for defending female categories

  • Organizations punished for maintaining female-only sport

Affected Populations

Women's Sports · HeCheated.org · Documented through 2025

The scale of male participation in female sport

Women's sport exists as a separate category because male puberty confers permanent physiological advantages that make fair competition impossible. These numbers document what happens when that boundary is removed — real female athletes losing real opportunities to male competitors.

On this source
Data compiled by HeCheated.org, an advocacy database. Each athlete is verified via public records: past results in men's categories, name changes, news reporting, and personal declarations. The database methodology is publicly documented. These figures represent a minimum — many cases go undocumented.
0+
Male athletes documented competing in female sport
1,014 named + 225+ unnamed. Each verified via public records.
hecheated.org — athletes
0+
Competition events entered in female categories
Across 28 sports. Each entry displaces a female competitor.
hecheated.org — results
0+
1st place finishes taken from female athletes
32% of all events entered resulted in a male taking first place.
hecheated.org — results
0+
Awards and honours taken from female athletes
MVPs, player-of-match, championships, league titles.
hecheated.org — awards
0+
Female records currently held by male athletes
Including 39+ world records. 678+ records set in total.
hecheated.org — records
$0.0M+
In prize money taken from female athletes
927+ women robbed of prize winnings, scholarships, and sponsorships.
hecheated.org — prize money
What this means
These numbers grow every time a sporting body adopts gender self-identification policy instead of sex-based categories. Behind every statistic is a female athlete who trained for years, competed fairly, and was displaced — from a podium, a record, a scholarship, or a prize cheque — by someone who had the permanent physiological advantages of male puberty.

References

  1. Alberta Fairness and Safety in Sport Act. (2024). Government of Alberta. Retrieved from https://www.alberta.ca/

  2. International Olympic Committee. (2026). International Olympic Committee announces new policy on the protection of the female women’s category in Olympic sport. Olympics.com. https://www.olympics.com/ioc/news/international-olympic-committee-announces-new-policy-on-the-protection-of-the-female-women-s-category-in-olympic-sport

  3. World Rugby. (2021). Transgender women guideline. https://www.world.rugby/the-game/player-welfare/guidelines/transgender/women?lang=en

  4. World Aquatics. (2023). Policy on eligibility for the men’s and women’s competition categories. https://resources.fina.org/fina/document/2023/03/27/dbc3381c-91e9-4ea4-a743-84c8b06debef/Policy-on-Eligibility-for-the-Men-s-and-Women-s-Competiition-Categrories-Version-on-2023.03.24.pdf

  5. World Athletics. (2025). Regulations for the implementation of eligibility rule 3.5 (Male and Female Categories).https://worldathletics.org/download/download?filename=0a7afe9e-9998-4cbc-a8c5-82c0ac5a80c6.pdf&urlslug=C3.5A+-+Regulations+for+the+Implementation+of+Eligibility+Rule+3.5+%28Male+and+Female+Categories%29%2C+effective+01+SEP+2025

  6. Handelsman, D. J., Hirschberg, A. L., & Bermon, S. (2018). Circulating testosterone as the hormonal basis of sex differences in athletic performance. Endocrine Reviews, 39(5), 803-829. https://doi.org/10.1210/er.2018-00020

  7. Harper, J., O'Donnell, E., Sorouri Khorashad, B., McDermott, H., & Witcomb, G. L. (2021). How does hormone transition in transgender women change body composition, muscle strength and haemoglobin? Systematic review with a focus on the implications for sport participation. British Journal of Sports Medicine, 55(15), 865-872. https://doi.org/10.1136/bjsports-2020-103106

  8. Hilton, E. N., & Lundberg, T. R. (2021). Transgender women in the female category of sport: Perspectives on testosterone suppression and performance advantage. Sports Medicine, 51(2), 199-214. https://doi.org/10.1007/s40279-020-01389-3

  9. Save Women's Sports. (2024). Athlete testimonials and policy advocacy. Retrieved from https://www.savewomenssports.com/

  10. Tucker, R., & Collins, R. (2020). What is the relationship between gender identity and sport performance? British Journal of Sports Medicine, 54(3), 1-3. https://doi.org/10.1136/bjsports-2019-101649

  11. Women's Sports Policy Working Group. (2024). Preserve Title IX: Protecting female athletes. Retrieved from https://www.womenssportspolicy.org/

  12. World Athletics (formerly IAAF). (2023). Eligibility regulations for the female classification. Retrieved from https://www.worldathletics.org/

We Need Your Support

For Women & Girls Alberta is a non-partisan, women-led, volunteer organization, and we rely on concerned Albertans like you to help us do the work.

We receive no public funding or corporate sponsorship whatsoever.

We Need Your Support

For Women & Girls Alberta is a non-partisan, women-led, volunteer organization, and we rely on concerned Albertans like you to help us do the work.

We receive no public funding or corporate sponsorship whatsoever.

We Need Your Support

For Women & Girls Alberta is a non-partisan, women-led, volunteer organization, and we rely on concerned Albertans like you to help us do the work.

We receive no public funding or corporate sponsorship whatsoever.