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 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 · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 91.66bbYour cards?
11.5bb
79.84bb
Tap your two cards.
Small blind / button's range
980 of 1,326 combos get hereFold 88.3%Call 11.8%
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 80bb?
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, 80bb: the small blind / button (SB) folds 88.3% and calls 11.8%. Always call: 88+, 55-66, AQs+, AQo+. Mixed: 77, 44, A9s-AJs, A5s, KQs, KTs, QJs, ATo-AJo.
- Always fold
- A8s, A2s-A4s, KJs, K8s, K6s, Q9s-QTs, Q5s-Q7s, J8s, J3s-J6s, T5s-T6s, T2s-T3s, 95s-96s, 93s, 85s-86s, 82s-83s, 74s, 65s, 63s, 52s-53s, 43s, 32s, A2o-A9o, K7o+, K2o-K5o, Q9o-QTo, Q5o-Q7o, Q2o-Q3o, J7o+, J4o, T8o+, T4o-T6o, 97o, 86o+, 64o, 43o
- Always call
- 88+, 55-66, AQs+, AQo+
- Mixed
- 77, 44, A9s-AJs, A5s, KQs, KTs, QJs, ATo-AJo
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.
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.