Let's share our biggest winning odd.
Last month I won a bet with 7.5 odd.
I bet on Tennis against Rafael Nadal.

20x odd. I was starting on betting and it was a boxing match on a casino i haven't used for a long time anymore. It was a match that looked like it could be boring to watch live. And if i had bet on either of the fighters odds would have been really low, so i decided to make things more interesting. I have to say i was really surprised i won. I think it was only $5 bet though. I can't remeber who the fighters were, only that they were men. It was a long time ago.
But it was pure luck, and combination bets have served me better.