When can you consider yourself winning at a certain stake?
Like topic, at what sample size can you be certain of that you're a winning player at NLX?
I've got 340k hands at 2nl at 7bb/100 and 340k at 5nl at 2.5 bb/100 so there I know for sure I'm a winner (though a small winner).
But when it comes to 10nl I've only got around 35k hands and 10bb/100 (30bb/100 last 8k) , so I can't really be sure I'm beating it yet - can I?
The reason why I'm posting this thread is because of the whole move up thing. My bankroll is enough to play 25nl, but I want to make sure that I can win at 10nl before even trying to move up.
So what's a good sample? Around 100k would probably be enough?