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

CO vs SB all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 2.5bb, SB 3-bets to 5bb, CO 4-bets to 11.5bb, SB goes all-in · Cutoff to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 112.98bbYour cards?
11.5bb
99.84bb
1bb

Tap your two cards.

Cutoff's range

484 of 1,326 combos get here
Fold 92.2%Call 7.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 2.5bb, SB 3-bets to 5bb, CO 4-bets to 11.5bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO opens 2.5bb, SB 3-bets to 5bb, CO 4-bets to 11.5bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the cutoff (CO) folds 92.2% and calls 7.8%. Always call: KK+, AKs, AKo. Mixed: JJ-QQ, 99, AQs.

Always fold
TT, 88, 22, A9s-AJs, A6s-A7s, A3s-A4s, KTs-KJs, K5s-K8s, K2s-K3s, Q8s-QTs, Q4s-Q6s, J8s+, J5s-J6s, T9s, 98s, 87s, 75s+, 64s, 54s, A7o-AQo, A4o-A5o, KTo+, QTo+, JTo
Always call
KK+, AKs, AKo
Mixed
JJ-QQ, 99, AQs
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.