PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/SB vs BB 4-bet 11.5bb

SB vs BB 4-bet 11.5bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb · Small blind / button to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 16.82bbYour cards?
5bb
11.5bb

Tap your two cards.

Small blind / button's range

654 of 1,326 combos get here
Fold 23.4%Call 73.7%All-in 99.84bb 2.9%
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 5bb, BB 4-bets to 11.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 5bb, BB 4-bets to 11.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the small blind / button (SB) folds 23.4%, calls 73.7% and goes all-in 99.84bb 2.9%. Always call: QQ+, 66-88, AQs, K3s-K5s, Q6s, J7s, J4s-J5s, T5s, 96s-97s, 85s, 73s, 64s, 42s, ATo-AQo, A3o, K9o+, QJo, Q9o, J9o+, T9o, 98o, 65o. Mixed: 99-JJ, Q3s, J3s, 94s, 83s-84s, AKo, A4o-A7o, QTo, T8o, 87o.

Always fold
K6o, K2o, J5o, J3o
Always call
QQ+, 66-88, AQs, K3s-K5s, Q6s, J7s, J4s-J5s, T5s, 96s-97s, 85s, 73s, 64s, 42s, ATo-AQo, A3o, K9o+, QJo, Q9o, J9o+, T9o, 98o, 65o
Always all-in 99.84bb
No hand plays this every time
Mixed
99-JJ, Q3s, J3s, 94s, 83s-84s, AKo, A4o-A7o, QTo, T8o, 87o
Settings: Heads-up · 100bb · 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, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.

Rake sources for the games it fits: 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.