Below link talks about several popular crypto betting exchanges which are rarely talked about within this forum, but could help out punters searching for Betfair like crypto betting exchanges.
https://bitcointalksearch.org/topic/betting-exchanges-like-betfair-exbit-etc-5415332
Do you mean the crypto betting exchanges listed in this post?
https://bitcointalksearch.org/topic/m.61029458
But all of them are rated as C/C- by SportStatist.
¯\_(ツ)_/¯
Although, they do accept Bitcoin, no?
Below link talks about a particular video where crash is explained in a precise and easy to understand manner which you yourself liked op.
https://bitcointalksearch.org/topic/exploring-the-math-behind-crash-5461328
👍
House edge makes you a long term loser. Your implied probability of winning might be 51%, but if the amount won with the bet constantly pays lower than that of your implied probability, then for every bet you pay more than you win.