Poker Betting Rules: Minimum Raises and All-Ins

Preflop, C posts a 100 big blind. A raises to 200. B reraises to 450. B’s raise increment is 450 − 200 = 250. The next minimum raise is to 700: 450 + 250 = 700.

C has already contributed the 100 big blind, so C pays another 600 to reach 700. Raising to 700 is a street total, not a request to add 700 more chips. A player with fewer chips may instead move all-in for their remaining stack.

If there is no amount to match, you can check or open the betting. If there is an amount to match, you can fold, call or legally raise. The posted big blind counts as a preflop bet: earlier players must call or raise to stay in. If everyone merely calls, the big blind still gets the option to check or raise.

Going all-in describes committing your stack. Facing 200 with nothing paid on this street, an all-in total of 150 is a short call; 280 is a short raise; 450 is a full raise.

In no-limit Hold’em, A bets 200 and B goes all-in to 280. If C calls 280, A faces only 80 more. A can call or fold, but cannot reraise: 80 is less than the last full increment of 200.

C, who has not yet acted, may instead raise to at least 480 (280 + 200). That full raise reopens action for A. Multiple short all-ins can also cumulatively reopen action when the extra amount a particular player faces reaches a full increment. Another live opponent with chips must remain to contest further bets. See Poker TDA rules on raises and reopening for tournament procedures; fixed-limit rules differ.