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Poker glossary

Big Blind (BB)

What it means

The big blind (BB) is the larger of two forced bets that create initial action in Texas Hold’em and Omaha. Posted by the player two seats left of the dealer button, it’s typically double the small blind amount. The big blind serves as both a positional marker and the standard unit for measuring stack sizes and bet amounts in poker.

How it works at the table

Before any cards are dealt, the big blind player must post their bet. In a $1/$2 game, the big blind posts $2. Once betting begins, the big blind acts last preflop but second in all subsequent rounds. Consider this example: You’re in the big blind with 100bb (100 big blinds = $200 in a $1/$2 game) holding K♥ J♠. UTG raises to 3bb ($6), everyone folds to you. You need to call 1bb more since you’ve already posted 2bb. After the flop of K♠ 7♦ 2♣, you’ll act first for the remainder of the hand.

Strategic context

Playing from the big blind requires unique adjustments. You get the best pot odds preflop since you’ve already invested one blind, but you’ll be out of position postflop against most opponents. This creates a fundamental tension - you can defend wider ranges due to the discount, but realizing equity becomes harder without position. Strong players defend their big blind aggressively against late position opens while playing cautiously against early position raises.

Common mistakes

Players often defend too loosely just because they’re “already in for one blind” - getting 3.5:1 doesn’t make J4o playable against an UTG raise. Another error is playing too passively postflop, checking entire ranges on unfavorable boards. Many also fail to adjust their defending range based on the raiser’s position, defending the same hands against UTG as they would against the button.

Understanding big blind play connects directly to pot odds calculations and positional awareness. Your defending range depends heavily on stack sizes - shorter stacks require tighter ranges while deep stacks allow more speculative hands. The big blind also serves as the primary measurement unit in poker, making it essential for bankroll management discussions where we track wins and losses in bb/100 (big blinds won per 100 hands).