Going All-In in Poker: Rules, Math & When to Shove

Table Stakes

You can only bet what is in front of you at the start of the hand, and you can only win that amount from each opponent. You cannot add chips mid-hand, and opponents cannot win more from you than you had when the hand started.

Side Pot Creation

When a short-stacked player is all-in and other players continue to bet, those additional bets form a side pot. The all-in player competes only for the main pot — the portion everyone contributed equally. Side pots belong only to the players who funded them.

Multiple All-Ins

In a multi-way pot, multiple side pots can exist simultaneously. Each is awarded independently at showdown, starting with the largest side pot (fewest eligible players) and finishing with the main pot (all players).

Equity > Pot Odds %

+EV Call ✓

Call and expect profit long-term

Equity < Pot Odds %

−EV Call ✗

Fold and preserve your stack

When you have already invested so many chips that folding would leave you with too few to play effectively, shoving maximizes fold equity and avoids being bet off your hand on later streets.

At short stack depths of 10–20 big blinds, the correct strategy is to either shove all-in or fold preflop. Raising smaller gives opponents odds to call with dominated hands.

With a strong draw (flush draw, open-ended straight draw) and fold equity, shoving forces opponents off better made hands while still winning when called and you hit.

With a very strong hand against a calling range (top set, nut flush on a safe board), maximizing pot size by shoving extracts full value before scare cards arrive.

Near a bubble or pay-jump, shorter stacks can shove profitably with a wider range because folding equity is amplified — opponents risk busting with chip-EV positive calls that are ICM-negative.

Deep-Stacked Value Destruction

With 100+ bb effective stacks, shoving a medium-strength hand (e.g., top pair top kicker) merges your value range with your bluffing range and folds out worse hands while getting called by better ones.

Bluff-Shoving into a Calling Station

Fold equity requires your opponent to actually fold. Against players who call too wide, all-in bluffs become pure money donations — you need real equity to compensate.

Ignoring Effective Stack

If your opponent has only 30 bb but you have 200 bb, the effective stack is 30 bb. Shoving 200 bb accomplishes nothing extra — only 30 bb is ever at risk.

Thin Value Shoves on Wet Boards

Shoving one pair into a board with many draws gives drawing hands correct pot odds to call. On safe boards the same hand plays better as a smaller bet that prices out draws.

EV Impact

Zero

Running it twice is mathematically neutral — expected profit is identical to running it once.

Variance Impact

Reduced

Each player captures a share of their equity on each run-out, smoothing short-term swings.

Who Benefits Most

Lower-Equity Side

Players with 30–40% equity prefer it as insurance against a single unlucky run-out.

Ignoring pot odds when calling

Many players call all-ins based on hand strength alone without checking whether the pot is offering sufficient odds. Even a strong hand like top pair can be a losing call if the pot odds require 20% equity and you only have 18%.

Confusing your stack with the effective stack

If you have $800 and your opponent has $100, you are not playing a big-stack game — you are playing a $100 effective-stack pot. Decisions should be made based on the smaller stack, not yours.

Shoving without fold equity

A preflop shove at 30 bb into a player who has already 3-bet and will always call your range is not a fold equity play — it is a pure equity play. Adjusting your shoving range to require only equity and not fold equity is correct.

Misreading pot-committed situations

Folding in spots where you are pot-committed is one of the most expensive recurring mistakes. If calling the remaining chips would give you better than 2:1 on a hand with any reasonable equity, folding is almost always incorrect.

Not adjusting for ICM in tournaments

In cash games, all-in EV is purely chip EV. In tournaments near a bubble or pay jump, chip EV and ICM EV diverge significantly — a mathematically +EV chip shove can be a −EV tournament decision.

What does all-in mean in poker?

Going all-in means betting every chip you have remaining in front of you in a single action. Once all-in, you cannot be forced out of the hand — you are guaranteed to see all remaining community cards dealt. If the pot grows beyond the amount you contributed, the excess forms a side pot that you cannot win.

What happens when players have different chip counts (side pots)?

When a short-stacked player goes all-in, they can only win the amount they matched from each other player — their eligible pot. Any additional bets between the remaining players form a side pot. At showdown, the side pot is awarded first among the eligible players, then the main pot is contested. A short stack can win the main pot even if another player wins the side pot.

When should you go all-in in poker?

Go all-in when: (1) your stack is 10–20 big blinds and push/fold strategy applies, (2) you are pot-committed and folding is mathematically inferior, (3) you hold a very strong hand and want maximum value, (4) you have a strong draw plus fold equity and a semi-bluff shove is +EV, or (5) tournament ICM dynamics amplify your fold equity near pay jumps.

What is the pot-committed threshold?

You are pot-committed when the amount you must call represents such a large portion of a pot you already have significant investment in that folding has negative expected value compared to calling. A common rule of thumb: if calling costs less than 33% of the total pot after the call, and you have any reasonable equity, folding is usually a mistake. The effective stack — not just your chips — determines this threshold.

Can you go all-in on any street?

Yes. You can go all-in preflop, on the flop, turn, or river. The correct street depends on your hand strength, stack depth, and opponent tendencies. Preflop shoves are common at short stacks (under 20 bb). Postflop all-ins usually involve strong made hands or large semi-bluffs where effective stacks have been reduced enough that a single bet can commit all remaining chips.

What is 'running it twice' after an all-in?

Running it twice means dealing the remaining community cards twice and splitting the pot equally between the two run-outs. Both players must agree. It is mathematically neutral — your EV is identical to running it once — but it reduces variance by letting each player realize a portion of their equity on each board. Players with lower equity typically prefer it as insurance against a single bad run-out.