it;s alright, i got the trophy now, it wasn't the 3 first or last races. I was on my 3rd run, and I got it on the second regular cannonball race, seems like alot of people missed the cannonball ones forums, maybe its easier for the gta game to miss the "win" on the longer games.
sorry about the late response but i was sleeping haha
what you wanna do is make sure you got the top score on all the games modes(incl. team matches). best thing to do is do them again just like the last 3 races and the first 3 races u did on Race and GTA Race. have you used the checklist from the FAQ?