I think casino bets is more risky than sport. Casino bets for experienced gamers it's also most risky betting on online sites. If you see then notice that most of the people lose their cryptocurrency on bets and also gain profit or extra money by betting. On the other side sport is less risky than casino, I read huge post about that and also surfing different kinds of online articles. So based on my information i think casino bets is more risky than sport.