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 limps, SB isolates to 3bb, CO 3-bets to 9bb, 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 110.48bbYour cards?
9bb
99.84bb
1bb
Tap your two cards.
Cutoff's range
238 of 1,326 combos get hereFold 83.3%Call 16.7%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the cutoff (CO) when CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 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 9bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the cutoff (CO) folds 83.3% and calls 16.7%. Always call: JJ+, AKs, AKo.
- Always fold
- 77, 55, AQs, A6s, A4s, K7s-K8s, K5s, Q8s, AQo, A9o-ATo, KJo, QJo
- Always call
- JJ+, AKs, 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.