I didn't mean I smoke right before I play sports, I meant I play sports and smoke weed; they are two hobbies of mine.
I really don't like getting baked before playing ball (which is my main sport). If I take like two hits, then I'll be good and my jumper will be on, but if I smoke, say, a whole blunt I'll be horrible. It really isn't worth it to smoke before playing sports, IMO. I think you should keep the two hobbies separate.