PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BB 4-bet 11.5bb

SB vs BB 4-bet 11.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb · Small blind to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 17.3bbYour cards?
5bb
11.5bb

Tap your two cards.

Small blind's range

604 of 1,326 combos get here
Fold 63.1%Call 27.3%All-in 79.84bb 9.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the small blind (SB) folds 63.1%, calls 27.3% and goes all-in 79.84bb 9.6%. Always call: 55-99, 22, ATs-AJs, KJs+, K9s, QTs, ATo-AJo. Always all-in 79.84bb: KK, AKo. Mixed: AA, TT-QQ, 44, AQs, A9s, A2s-A7s, K8s, K6s, Q9s, J9s, T8s, 98s, 65s, AQo, A9o, KQo, QTo+.

Always fold
K7s, K3s, Q4s-Q8s, J7s-J8s, T7s, T4s-T5s, 97s, 94s-95s, 87s, 64s, A8o, A4o-A5o, A2o, K8o-KTo, J9o+, T9o
Always call
55-99, 22, ATs-AJs, KJs+, K9s, QTs, ATo-AJo
Always all-in 79.84bb
KK, AKo
Mixed
AA, TT-QQ, 44, AQs, A9s, A2s-A7s, K8s, K6s, Q9s, J9s, T8s, 98s, 65s, AQo, A9o, KQo, QTo+
Settings: 5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.