All-In — Poker Definition

Quick answer

All-in: wager all of the chips you currently have available in the hand.

Effective stack

If you have 5,000 chips and an opponent has 12,000, only 5,000 from that opponent can be matched directly against you. The effective stack between you is 5,000.

Side pots

When several players continue for different all-in amounts, a main pot and one or more side pots can be created. Each player can win only the pots for which that player is eligible.

Why it matters

All-ins are common at shallow tournament stack depths because smaller raises can commit a large share of the stack. They also create the situations in which players can double up.

Related reading

Double Up

See how winning an all-in can double a stack.

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Last updated: August 26, 2026 · Publisher: Double Up Poker