Why are boys better than girls in sports?

It depends what sports.Girls have stronger legs then us.But very sensitive knees.If it has to do the sports than i'd say boys.But depending on the age.A girl is equal to a boy(depending if shes active) between 1-11.So that's really a basic easy way to compare to cause after guy hits puberty-boys are 5 x stronger when they were a long time ago (depending if the guy is in the regular puberty stage,which means when a gets a little muscular when he's fit.but also becomes faster and stronger.But if a girl is use to a sport that the guy never played, yeah the girl would be way better.But if they play the same sports as a kid the girl or boy can be better at the sport.Girls can be then a boy as a kid,but when a boy hits puberty~it's a little a hard for a girl to better than a guy during puberty stage,but if the guys a little big then the girl has chance,if the there both fir or not then i'd say a guy.so i'd say a guy,but a girl if shes lucky depending on the sport or weight.