Retired cyclocross champion speaks out on trans athletes in women's sports: 'This is not fair sport'

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Hannah Arensman, a superstar cyclist who competed on the national cyclocross circuit, spoke out Friday about the decision to retire from the sport after she lost to Austin Killips at an event last year.

Killips, a transgender female who is allowed to compete in the women’s division, finished in third place at the UCI Cyclocross National Championships in December. Arensman finished in fourth and another transgender female, Jenna Lingwood, finished in fifth place. 

Arensman revealed she retired from the sport in an amicus brief calling for the Supreme Court to vacate a preliminary injunction against a West Virginia law that sought to keep transgender student-athletes at all levels of competition to play against those with the same biological gender instead of the gender they identify as. She was one of 67 athletes, coaches and family members who supported the law.

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Hannah Arensman competes in 2016. (Tim de Waele/Corbis via Getty Images)

Arensman suggested to The Telegraph in a recent interview that the influx of transgender female athletes competing against biological women is a bad sign for the future of the category.

"I realized that if an opportunity presented itself to say something on behalf of other women, then I would take it," she told the outlet. "This has gone on long enough, it has gone far enough. It should never have reached this point, it should never have been allowed. Someone has to take responsibility. This is not fair sport, and the governing bodies, who should have made the rules at the beginning, need to realize it. The very people who should be protecting our