to be honest i usually dont play on betting websites though if i want to make a bet i usually choose to go with directbet.eu or anonibet
besides that you should google about the sportsbooks websites before making a bet because you should search for the best odds
Fairlay Bitcoin prediction market - the future of reliable information. Has a dedicated eSports wide section.
I like directbet.eu, the way the bet confirms without any confirmation and in the case of winning my winning automatically are transferred on to my given address.