Well, your constant mass means that you will still have the same inertia when playing sports. I would expect pairs of fractured skulls, pairs of broken shins in soccer players, etc.
Maybe ... you can't run much faster, so i'd imagine it would be like ultimate aerobee[0] - i.e., minutes-long chases of errant balls with no other player within hundreds of yards.
That would be lame. Maybe, try massive multiplayer soccer, with an average of 1 player per square decameter? Now the captain's most important quality is management skills, and they might need a handful of squad leaders. I guess this isn't soccer anymore, but whatevs.
I've always dreamed of finding a field big enough and 10 people willing to play ultimate aerobee. If we can find 8 other people like us, want to rent a polo field?
Wow, soccer would be epic in low G!