The women were noticeably slower than the men. My wife was wondering why that was, since it didn't seem likely to be due to male upper body strength. She wondered if it was something to do with the different hip structures. I said I didn't know why it was, but that female champion marathoners are slower than male champions, and that there were no women that I'd heard of in the Tour de France.
Anyway, I found an article about why men are faster runners, and it turns out it's multiple biological factors, including both the hip structure and the fact that men actually have more muscle in their legs. Well, this is why we have separate prizes or races for women.
Here's a separate article about the difference between male and female Olympic cycling, which gets into some of the arcane aspects of advanced cycling.
Of course, every single one of the women cyclists on the course could beat me in a bike race.
I think everyone riding had a ten thousand dollar bike,
Any one of which... I would like.