3BET The act of making a raise against a raise in a hand, or in other words, the final bet in the sequence of Big Blind - Raise - 3Bet. Explained A 3Bet occurs when a player raises the original raiser in a hand. For example: Small & Big Blind Post for $1 and $2 respectively. 1. "Player A" in mid position makes a raise to $7. 2. "Player B" on the button makes another raise (the "3Bet") to $22 Why We Say 'Three-Bet' A three-bet is simply a re-raise (although an initial raise is never referred to as a "two-bet"). Why do poker players use this terminology? a) It helps when describing hand dynamics more accurately, in an instance where you might be discussing, say, "four-betting dynamics." It sounds cooler.