He wasn't martingaling.

I set the multi to 1.24 and began.   I immediately noticed I was getting raped hardcore.  I was only betting 10 bits at a time so as not to break the bank if I needed to 6x on a loss.   And if I somehow got 2 losses in a row, which is highly unlikely,  i would need to wager 36x  and so on.

Out of curiosity, what is HF?