Well we're there too, DS 7 and not into sports, unless a spontaneous game with fun invented rules. We just moved to a new district and it is awesome in many respects, but it is also more sports oriented. At the old school PE was all about jumping around just having fun, just anti-obesity activity oriented. Here it is skill building time, "fun" drills and races that emphasize rules and competition although they say the opposite. Recess at the old school was mostly free for alls on the play equipment with 20 different things going on , here there is a more uniform culture with the girls virtually all doing make believe play and the boys playing soccer (every single day, wouldn't that get dull?). One group of 2 boys are best friends and play by themselves, but DS would be the third wheel there. Recess here is also limited to the grade rather than a mix of ages, which really diminishes the novelty one might find out there.

DS is destined to play with the girls I think for the next couple of years. That's okay by me! Luckily he likes being the "monster", "dad", etc for them so seems to be getting along okay, wistful about not being part of the boy play though. But recess is ridiculously short now so over all too soon.

No great advice, just posting so you know it's not just your DS.