Depends on the cut though, but I feel ya, hockey thighs suck! SO does the stench from the gloves that never seems to leave your hands, no matter how much you scrub. Once I started working after college, I actually had to go buy 7 pairs, so that I could rotate them and keep my hands from stenching! But thats for another thread.
I just won a tweed suit on ebay that I took to me tailor to open up the seat and waist, and he also showed me about three inches of fabric that can open the thigh and crotch...he said thats VERY rare, but we were both pleased that these trousers had it!