LetsRun.com wrote:
I used to think it was ok to let them compete after a year of hormones but it really varies a lot by every sport. I mean in some sports, the extra bone mass may not be a help but in others, its huge.
It's not just the bone mass, gender seems to make a difference even in non-physical competitions, such as chess:
"Women have been competing with men at top chess events since the late '80s, but there's still a big performance gap. In the most recent list of the Top 100 chess players, only one was a woman. While the gender divide in sports like hockey makes sense in some ways -- men are generally bigger and stronger -- chess isn't a physical game, it's a game of the mind. "