I'd wager to say that most any female athlete knows this. Women's sports exist solely because women acknowledge that they can't physically keep up with men. That's the whole point. Not to be better than men, but because excluding men is the only way they have a fair shot of competing. There are obviously some asshole femtards like the pink hair on the soccer team, but most female athletes are extremely aware that they can't keep up with men and are perfectly ok with that.