A transgender cyclist won the women’s category in a gravel race, but was left alone on the winners’ podium after the event.

The second and third place winners declined to appear at the medal ceremony after Lesley Mumford won her age group in the 100-mile Desert Gravel Co2Ut. Mumford was born a male and became a female in 2017.

Mumford posted a photo on Instagram of herself on the podium alone but smiling and holding her first place medal.

«I have no idea why so many people gave up on podiums, but they did,» Mumford wrote after finishing ahead of 43 female athletes in the 40-49 split.

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Cyclists ride over an eroded bottom in Utah. (Jonathan Devitch/Getty Images)

Mumford finished sixth in the overall women’s category of the race.

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youThe event offered a non-binary division, but Mumford decided to compete in the women’s category.

Mumford edged Lindsey Kriete by 17 minutes. Kriete finished in second place, while Michelle Van Sickle finished in third.

Neither Kriete nor Van Sickle have publicly commented on their decision not to join Mumford on the podium.

Former Kentucky swimmer Riley Gaines took to Twitter and said, «Enough is enough!»

«Empty podium except for the man who naturally finished on top of all the women in the female category. Even though there was a non-binary/trans category he could easily have competed in. Keep it up guys!» Gaines wrote in a tweet.

The three-time Olympic and Tour de France medalist called the actions of the runners in second and third place «silent protests.»

«The silent protests are beginning!» Thompson wrote.

Mumford spent 17 years working in law enforcement before beginning the transition about six years ago. According to CBS News, Mumford was believed to be the first known transgender law enforcement officer at the command level to transition.

Mumford worked at the Summit County Sheriff’s Office and recalled a staff meeting in which her son told coworkers about his transition.

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«The sheriff asked everybody, ‘Hey, I heard there are some rumors out there about why we’re here today. Anyone want to share one?'» Mumford recalled during an interview with Summit Daily.

«Devin, my 7-year-old son, raises his hand, stands up in his chair, and says, ‘Because my mom is going to tell you she’s transgender.'»