PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs CO all-in

SB vs CO all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, SB isolates to 3bb, CO 3-bets to 6bb, SB 4-bets to 13.8bb, CO goes all-in · Small blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 115.28bbYour cards?
13.8bb
1bb
99.84bb

Tap your two cards.

Small blind's range

232 of 1,326 combos get here
Fold 79.3%Call 20.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO limps, SB isolates to 3bb, CO 3-bets to 6bb, SB 4-bets to 13.8bb, CO goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO limps, SB isolates to 3bb, CO 3-bets to 6bb, SB 4-bets to 13.8bb, CO goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the small blind (SB) folds 79.3% and calls 20.7%. Always call: QQ+, AKs. Mixed: 99-JJ, 66, A8s-AJs, 76s, AKo.

Always fold
77-88, 55, AQs, A7s, A4s-A5s, K8s-KJs, Q9s+, J9s+, T7s+, 97s+, 64s+, 54s, AJo-AQo, KQo
Always call
QQ+, AKs
Mixed
99-JJ, 66, A8s-AJs, 76s, AKo
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.