Hello. Can you know what are bookmakers give free bet on sport betting?
Sportsbet and few other betting websites are giving regular free bets in prediction competitions here in bitcointalk games and rounds, but you should first be more active in forum.
Free bet is useless. Even if you win, you're unable to withdraw the winning proceeds. So, why waste times to play free bets? Unless you just want to have fun and get acquainted with the platform.
This is not true, and it's not a waste of time if you win a bet.
I know many people here including myself who managed to win and withdraw coins from free bets.