You should probably know that E-sport betting has been legal for quite some time now. understand that the supreme court does not dictate over all the countries in the world. All this aside, insidertips and in some cases completely throwing matches have already taken place in smaller tournaments in EU. i base this on pros admitting to this. example: some matches are played where you can bet on first blood,first tower etc. so when the first blood is drawed, one of the competitors notify friends and the bet is placed.