Measure your stack in big blinds
Divide your chips by the current big blind. If you have 6,000 chips and the big blind is 600, your stack is 10 big blinds (BB). This makes your stack easier to compare as blinds rise. Antes also matter because they add to the cost of waiting for another hand.
A short stack is a description, not a strict rule with one cutoff. Some players use about 15 BB as a practical warning point. The best plan still depends on how many players are left, your position and the event structure. See our guide to how poker tournaments work for blind levels and tournament stacks.
What changes around 15, 10 and 5 big blinds
Around 15 BB, you may still have room to raise and fold, but a raise can use a meaningful part of your stack. Think about who acts after you and whether you can continue if someone reraises. Your position at the table changes how many opponents can respond.
Around 10 BB, an open shove can be one option when everyone has folded to you, especially from a later position. It is not an automatic play: the hands you can move in with depend on the players behind you, the blinds and antes, and the tournament stage.
Around 5 BB, waiting only for a premium hand can leave you with even fewer options as blinds pass. Look for a spot where your position, the action and your cards make sense together. These stack sizes are examples, not fixed push-or-fold ranges.
Separate moving all-in from calling one
When you move all-in first, opponents may fold and you can win the blinds and antes without a showdown. That possibility is fold equity. When you call an opponent’s all-in, you remove that possibility and need enough equity for the price of the call.
Use the pot odds formula as one part of a call decision, but account for the tournament context too. A call near a payout jump can have a different cost from the same chip decision earlier in an event.
Use a short checklist before committing
- Count your stack in big blinds and note the ante.
- Check your position and how many players still have to act.
- Notice whether the pot is unopened, raised or already contested.
- Compare the effective stacks and the cost of folding another orbit.
- Account for the event stage and any payout pressure before choosing a risk.
Build your tournament fundamentals
Short-stack decisions are easier to understand when you know your starting hands, the table positions and the difference between an open raise and a 3-bet. No single chart fits every table or payout structure.
To practise reading event details, open The Club and review the current tournaments. Check each event’s start time, entry amount and rules before registering.
Frequently asked questions
How many big blinds count as a short stack?
There is no universal cutoff. Players often call a stack of around 15 big blinds or fewer short, but position, antes and tournament stage also affect your options.
Should I always go all-in with 10 big blinds?
No. An all-in can be an option when action folds to you, but the right decision depends on your cards, position, players left to act, antes and event situation.
Is calling an all-in the same as moving all-in first?
No. Shoving first may make opponents fold, while a call has no fold equity. A call should be judged against the pot odds, your equity and the tournament situation.