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 opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb, 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 89.36bbYour cards?
9.2bb
79.84bb

Tap your two cards.

Small blind / button's range

870 of 1,326 combos get here
Fold 87.3%Call 12.7%
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 opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the small blind / button (SB) folds 87.3% and calls 12.7%. Always call: 88+, AJs+, AQo+. Mixed: 66-77, ATs, KTs, JTs, ATo-AJo, KQo.

Always fold
44, A5s-A8s, A2s, K8s-K9s, K3s-K6s, Q5s-Q8s, Q2s-Q3s, J9s, J6s-J7s, J2s, T7s+, T3s, 95s, 92s, 86s+, 84s, 82s, 76s, 73s-74s, 62s-64s, 42s, 32s, A2o-A9o, KJo, K8o-K9o, K4o-K6o, Q5o+, J9o, J7o, J4o, T8o+, T4o, 97o+, 75o, 65o, 53o
Always call
88+, AJs+, AQo+
Mixed
66-77, ATs, KTs, JTs, ATo-AJo, KQo
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.