PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN all-in

SB vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in · Small blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 168.73bbYour cards?
17.25bb
1bb
149.84bb

Tap your two cards.

Small blind's range

380 of 1,326 combos get here
Fold 83.4%Call 16.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the small blind (SB) folds 83.4% and calls 16.6%. Always call: QQ+, AKs, AKo. Mixed: 77-JJ, 55, AQs, ATs, A3s, KQs, AQo.

Always fold
66, 33-44, AJs, A4s-A9s, K6s-KJs, K3s, Q9s+, Q7s, Q4s, J7s+, T7s+, 96s+, 86s, 75s+, 65s, 63s, 52s-53s, A9o-AJo, KTo+, QJo
Always call
QQ+, AKs, AKo
Mixed
77-JJ, 55, AQs, ATs, A3s, KQs, AQo
Settings: 4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.