As a gambler, how many bets do you think you need to place to give you a true idea of how good you are? Anyone can hit 60% in the short term. But for example in betting I am hitting between 55-60% depending on the sport after around 450 - 500 bets. Assuming I want to go pro on betting, do you think that this is good enough or do I wait and see what my percentage is after 800 - 900 bets before making a decision?
I wonder what do you mean with "go on pro betting"? raising the bet amount or?
Well, lets say you have place 500 bets and all of them are won= 100%.
Yes you are pro with the previous 500 games/bets, and you might have a good future with the sports betting but still we dont know what will happen next.
As gambler, we know that there is a good days and bad days when we gamble. Sometimes we win and sometimes we lose.
Also, Quality is better than Quantity - the tension, the suspense is different when you place bet 10$ or $1000 on a single match and it will influence your decision/pick.
The statistic of your previous bets will not influence the future result, your experience does.