Re: Jerking off before a pick up game?
There are varying theories on this.
I remember years back when in school the sports coaches of various teams would actually tell the guys whether or not to do it before big matches and such. There were also ongoing debates on it between coaches.
The only organized sport I was in then was wrestling, and if I recall correctly we were told to avoid it (or sex) the day of and before a meet.
Also, it was common knowledge that the Football players used to do coke or amps before games...this was in HS.