I bet on manny pacquiao and i thought he won and i lost .8 BTC

Many many people lost betting on manny

In a way that teaches you that you should do research before placing any bets I mean, who in their right mind is going to bet against someone who is on a 46/0 winning streak when that person has refused fights to that point. Do you think he would accept if he wasn't very confident? lol. Unlucky though OP look into the past more before placing bets in future.