Most I've done is 8000ish in one weekend.
Mind you that's shooting two running events. Well when I say shooting, machine gunning is actually a more accurate term
My shutter went titsup back in the summer and got repaired under warranty. I think I'd have done about 40k at that point in the 8 months I'd had the beastie.
I'd love to know how many shots pros rattle off a week (at sports events).