A good female friend of mine was a decent junior in her day. I usually beat her with my kickserve and by breaking down her forehand (backhand is pretty flawless). She hits out, and is a leftie (I have lots of experience with lefties, their normal tricks generally don't work on me). It is super fun to play with her, and I actually don't mind losing at all when I do. Easily the most fun partner I get to hit with. Another female friend was a college player (D3), and now coaches a high school men's team, so she gets lots of court time. She routinely beats me by junkballing and constantly hitting to my backhand. It enrages me to no end. I think I hate losing to her because of her tactics. I'd like to think her gender plays no role, but it certainly can't help. She's no shot-maker, but she knows how to win.