GlossaryAt the table

All-in

Betting, raising or calling with every chip you have left.

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What it means
A player who is all-in has no chips left to bet, so they stay in the hand to the showdown without acting again.
How it is calculated
You can call all-in for less than the full bet; you then only win as much from each opponent as you put in, and any extra goes to a side pot the others play for.
Worked example
You have 4bb left and face an 8bb bet. You can fold or call all-in for 4bb; raising is not possible.
Why it matters
In tournaments stacks get short, so many decisions become all-in or fold. The push/fold drills train exactly those.

Try it: Push/fold calculator

Lessons that teach it: What you owe decides what you can do · lessons other than the free one need an invite

See also: Push/fold, Call, Calling a shove, Shove