So have you ever taken such a risk on gambe before?
Taking such risk in gambling requires tolerance and I'm sure I will never engage in such, just imagine you never won any of those games and your friend at the other hand had the money, this is very risky even with little amount I can't afford Losing such.
Although gamblers are meant to take risk but the risk depends on what you want, if you bet with high amount and the day turns to be your lucky day then you've taken a risk that worth celebrating but if you stake with high amount and still loss you will still bear the pains that's what makes gambling a risky game. I have learnt to avoid taking higher risk ever since I lost to some random game I had high hope. You should be happy you won all games and you should avoid taking higher risk with huge amount.
We are in both sides. The risk was too high we know gambling is all about risk but we need to be careful in some decisions we make otherwise it will affect us. Although I know that the game turns to be a wining, what would have been his expression when the game didn't play as expected. For me instead of taking such risk, I better play multiple of 20odd with #1k or just play or check for a 3odd game which I will stake with #6k. because what he just did is just risking his money for the remaining match why not stake with the remaining match rather buying a running game anyways is just a personal decision. Anyway Congratulations to his win.