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We play sport with our bodies, and therefore, in the interests of fairness, we must keep sporting categories separated on the basis of sex, and not gender identity.


We know that men are bigger and stronger than women, and we know that this is the result of a testosterone fuelled puberty. 


We have more than enough data to know that in any sporting event that requires speed, strength, grip, resistance or fast reactions then women can’t win against men, all other things being equal. 

Image showing sports-relevant physical,functional & performance differences between male & female

The differences are so pronounced, that when the athletics results of high achieving US schoolboys are compared to 2016 Olympic Women's Finalists, the boys win everything. In many events, the best women athletes in the world don’t even qualify for the boys’ event finals.

Source: Male High School Athletes vs Female Olympians.

Table illustrating Boys Versus Women results in 100m


Emma Hilton: Developmental Biologist and University Lecturer. She has published more than twenty manuscripts on developmental biology and genetics

Martina NavratilovaWidely considered among the greatest tennis players of all time, Navratilova won 18 Grand Slam singles titles, 31 major women's doubles titles, and 10 major mixed doubles titles, for a combined total of 59 major titles

Martina Navratilova Tweet Image

Jon Pike: Senior Lecturer in Philosophy. Political Philosophy, and the Ethics and Metaphysics of Sport.

Jon Pike Tweet Image

Mara Yamauchi: Second-fastest GB marathoner ever, two-time Olympian (6th Beijing ‘08), corporate & personal running coach.

Mara Yamuchi Tweet Image

Suppression of testosterone after puberty has little impact on the advantages conferred by male puberty, and this has been recognised by the IOC.


Laurel Hubbard was required drop his testosterone to <10 nanomoles/litre in order to compete in the women’s weight lifting event in Tokyo. The IOC has replaced that guidance with the requirement that no athlete may have an “advantage that disproportionately exceeds other advantages that exist at elite-level competition”. 


In other words...

There is no longer any meaningful guidance that would exclude males from female competition.

Analysis of World Records Graphic
Lean Body Mass Graphic

Early Humans

WRN Blogs

10 Days, A Race That Didn't Happen & Some Very Brave Women: Julie Bindel caught my mood exactly when she wrote “The week Britain finally came to its senses on trans extremists and cried... ENOUGH!” in the Daily Mail. After years of being mostly ignored and misrepresented in the media you could almost hear the collective gasp of disbelief as the British public finally woke up - Read more

You owe Sharron Davies an apology, Jeremy Vine: Sharron Davies is one of the best swimmers Britain has ever produced. She would, without a doubt, have been the Olympic gold medallist in 1980 if Petra Schneider had not been doping - Read more

Why is Emily Bridges marking his own homework?: Emily Bridges has been prevented from competing in the National Omnium Track Cycling Championship against multiple Olympic and World Champion Dame Laura Kenny because his British Cycling registration records that he is male - Read more

Laura Kenny is a National Treasure – Official: Remember the glory days of the 2012 London Olympics? When Laura Trott (as she was then) won gold in the women’s omnium? By 2016, she had won 7 world titles, 10 European titles and 4 Olympic golds and was already the most successful British female Olympian - Read more

Early Humans

WRN You Tube Channel

The Truth About Women's Sport: Visit our YouTube Channel and take a look at our video about the claims made by Pippa York during a recent conversation with fellow cyclist Matt Stephens abut Pippa's experiences in cycling: Watch Now

Early Humans

WRN Podcast

A Different Game - Equality In Women's Sports: Listen now


Coach Blade - The Fight For Women's Sport: Listen now

Ross Tuckers Talks With WRN: Listen Now

Neanderthals among mammoths: excavations at Lynford Quarry, Norfolk, UK

Fact Sheets

Neanderthals among mammoths: excavations at Lynford Quarry, Norfolk, UK


Fair Play For Women: Trans inclusion in women’s sport: IOC abandons testosterone suppression - Read More


Quillette: Male and Female Athletic Performance: Worlds Apart by Jon Pike, Emma Hilton, and Leslie A. How - Read More


Quillette: On the Issue of Female Athletics, the IOC Has Shirked Its Duty to Lead by Doriane Coleman and Martina Navratilova - Read More

Reason: On the Biology of Sex, Sex Differentiation, and the Performance Gap by Doriane Coleman - Read More

Neanderthals among mammoths: excavations at Lynford Quarry, Norfolk, UK


Emma Hilton: Twitter

Greg Price: Twitter

Jon Pike: Website | Twitter

Mara Yamauchi: Website | Twitter

Martina Navratilova: Website | Twitter

Fair Play For Women: Fair Play For Women is a campaigning and consultancy group which raises awareness, provides evidence and analysis, and works to protect the rights of women and girls in the UK.

Web: Fair Play For Women

Social Media: Twitter | Facebook | Instagram

Save Womens Sport: A coalition that seeks to preserve biology-based eligibility standards for participation in female sports.

Web: Save Womens Sport

Social Media: Twitter | Facebook | Instagram | You Tube

Sex Matters: A group lobbying for clarity on sex in law and institutions, publishing research, guidance and analysis and holding organisations accountable.

Web: Sex Matters

Social Media: Twitter | Facebook | Instagram | Linked In

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