PokerSolver
PokerSolver/Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/SB vs BB all-in

SB vs BB all-in

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB goes all-in · Small blind / button to act

Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 87.66bbYour cards?
7.5bb
79.84bb

Tap your two cards.

Small blind / button's range

812 of 1,326 combos get here
Fold 84%Call 16%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind / button (SB) when SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the small blind / button (SB) folds 84% and calls 16%. Always call: 66+, AQs+, AJo+. Mixed: A7s, A4s, A9o-ATo, KJo+.

Always fold
A2s, Q7s, Q3s-Q4s, JTs, J2s, T4s-T6s, 85s-86s, 74s-75s, 63s, A2o-A7o, K8o, K6o, K4o, QJo, Q7o-Q8o, Q2o-Q4o, J8o+, J3o-J4o, T5o-T8o, T2o, 97o+, 86o+, 76o, 65o
Always call
66+, AQs+, AJo+
Mixed
A7s, A4s, A9o-ATo, KJo+
Settings: Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 22.38). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.