Aggi_Ind It's shortsighted to broadly say that men are stronger and better than women. That said, there are things that men are better at than women, and vice versa.
While I haven't done the research to conclude this, I can say some talking points that can get people thinking. Women have better-refined motor skills, flexibility, and overall dexterity. Meanwhile, men have highly developed muscles due to the high amounts of testosterone that trigger them to grow.
Hearing this outcome between male and female tennis players doesn't surprise me. In fact, it makes sense. Where dexterity is concerned, women surpass men, and tennis requires a lot of carefully practiced motions to play. On the flip side, pit a woman against a man in a wrestling match (not advisable, but you get my point), or a boxing match, and you will probably see a one-sided outcome there as well for the men.
Though now that I think about it, maybe posting this here wasn't a good idea. Might cause a gender war...