TOURNAMENTS · FIELD NOTE
You Have 15 Big Blinds. Do You Have to Shove or Fold?
A simple 15bb tournament plan for min-raises, open shoves, re-jams, and the short postflop decisions people forget.
You are down to 15 big blinds and every preflop choice feels like it might be for your tournament life. The good news is that you are not automatically in shove-or-fold land. Small raises still work, especially when you want weaker hands to continue.
The short answer
Use a mix of min-raises and open shoves. Shove hands that gain a lot from folds and dislike playing after the flop. Min-raise hands that want action or can comfortably respond to a re-jam. Tighten when players who cover you can punish mistakes near a payout jump.
Three useful words
An open shove is moving all-in as the first raiser. A re-jam is shoving over a smaller open. ICM is the tournament pressure created because chips won and chips lost are not equally valuable near prizes.
Practice this spot first
King-seven suited on the button can raise small or shove depending on the blinds. Choose one, then use the reads in the practice hand: one blind re-jams too much and the other does not re-jam enough.
Keep more than one opening size
An open shove realizes fold equity and denies opponents the chance to re-jam. A min-raise risks fewer chips when folding but allows calls and 3-bets. Strong hands may prefer a small open because they benefit from dominated continues.
Middle-strength hands often mix. Their best action changes with position and the players behind.
Understand re-jam pressure
After a min-raise, the remaining stack is small enough that blind 3-bets are frequently all in. Open hands that can respond coherently. If too many opens must fold, aggressive blinds gain an easy exploit.
As a defender, choose re-jams using fold equity, blockers, and equity when called. Flat calls can exist from the big blind, but the resulting SPR is low and pair value rises.
Adjust for antes and payouts
Antes add dead money and reward wider aggression. Near a bubble or pay jump, risk premium can make medium stacks call much tighter than chip EV suggests. Short stacks may then shove wider, but covered players must still account for elimination cost.
Do not paste a chip-EV chart into an ICM-heavy final table.
Play shallow postflop honestly
A min-raise and call often create an SPR near two or lower. Top pair and strong draws gain commitment value; speculative floats lose room. Small flop bets can set up a turn shove without committing every medium hand immediately.
Before opening, visualize the most likely caller and resulting SPR. That prevents “surprise” stack-offs that were determined preflop.
Rule of thumb: At 15bb, choose the preflop action and the postflop commitment plan together.
Practice the transitions
Drill the same button hand at 12bb, 15bb, and 18bb. Record where open shoves disappear, where min-raise calls widen, and how blind re-jam ranges change. Then repeat with a tight and aggressive big blind. The goal is to recognize the stack boundary that changes the action, not to memorize one isolated 15bb chart.
Keep studying
Compare this boundary with how the strategy changes at 20 big blinds, then see how ICM risk premium reshapes otherwise profitable calls. For the blind-versus-blind version of the same shallow-stack pressure, study when the small blind should limp or raise.