SB vs BB all-in
Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb, BB goes all-in · Small blind / button to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker 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 111.66bbYour cards?
11.5bb
99.84bb
Tap your two cards.
Small blind / button's range
972 of 1,326 combos get hereFold 91.9%Call 8.1%
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 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?
SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb, BB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the small blind / button (SB) folds 91.9% and calls 8.1%. Always call: 99+, AQs+, AKo. Mixed: 77-88, ATs-AJs, A8s, KJs+, AQo.
- Always fold
- 66, A9s, A6s-A7s, A4s, K5s-KTs, K2s-K3s, QJs, Q8s-Q9s, Q4s-Q6s, JTs, J2s-J7s, T4s+, T2s, 96s+, 94s, 92s, 84s+, 72s+, 65s, 62s-63s, 52s-53s, 43s, 32s, A3o-AJo, K5o+, K2o-K3o, Q5o-QTo, Q3o, J8o+, J5o, T8o+, T4o-T6o, 96o-97o, 87o, 85o, 75o+, 65o, 54o
- Always call
- 99+, AQs+, AKo
- Mixed
- 77-88, ATs-AJs, A8s, KJs+, AQo
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.