What "system" is this guy using?

[Remember remember the 5th of November]

I've been observing this guy for a while https://coinroll.it/user/abe5-b578-1fe3 and he seems to have figured out a way to profit. What system is he using, cause his initial bets after a win vary a lot.

Also, if one doubles his money after a loss on the 2x multiplier, what does he do when it's at 5x? I am rather bad at math due to my ADHD.

[Zaih]

Simply recouping losses by increasing the bet. Since it's a higher multiplier doesn't need to increase it as much. On a win he will also profit 9x his base stake instead of just 1x the base stake in a simple martingale

And you'd only need to 1.2x your bet on a 5x multiplier martingale.

And it's impossible to 'beat' gambling with a 'system' Well.. mathematically at least.

[vlees]

If coinroll would show more than five bets at once I might even look at it, but this is just a pain in the ass.

[Remember remember the 5th of November]

True, but I've seen this guy do some crazy stunts. Betting at a multiplier of 80x, 40x, 10x and then 5x and adjusting his bet amount to recoup his losses if he wins, I even witnessed a loss streak of his up to 121, but he never gave up and recouped his losses.

At first I thought it was a bot, but the bets are different after he wins and it's just really weird.

[vlees]

Considered the possibility that he is a plain old gambler? And therefore he just does something and if he wins he continues.