A 4.0 man would beat a 4.0 woman pretty badly. So, what does the difference in rating have to be for men and women to have a competitive match. I'm a lower tier 4.5 (meaning I beat about 30-35% of other 4.5s and lose 65-70%) and beat a solid 4.5 woman 6-1, 6-0. I also play with a woman who is a former D1 player, played No. 1 at a mid-tier Big 10 school and was ranked top 100 in the NCAAs. She doesn't play a ton, so I benefit from that, but we trade sets. She beat me 6-3, 6-3, but I beat her 6-4 the next time we played. I've also won 6-2, and she's won 6-2. I actually think that overall she's better than me, but I really have an advantage on serve where she says she has a lot of trouble. She seems to have the upper hand when we get into longer points. She's very aggressive and I always tell her that if she was just a little bit more patient before going for her shots, she'd beat me all the time. Anyway, she must be at least a 5.5. So, a 1.0 difference in ratings will produce a decent match between men and women? And by decent I don't even necessarily mean a super close score. Just that there is solid play on both sides, both players can take control of a point and not be totally overwhelmed by the other.