Hedge betting (also known as hedging) is the act of placing a bet against a bet you have already placed to either minimize a potential loss or lock in a guaranteed profit, regardless of the result.
Hedging happens when bettors either lose confidence in their original pick, or see an opportunity to secure a guaranteed return from a game or event by backing against their original bet. This can take place either mid-season for futures markets, or mid-game during live in-game betting.