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) · 80bb · CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB goes all-in · Cutoff to act
4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 90.48bbYour cards?
9bb
79.84bb
1bb
Tap your two cards.
Cutoff's range
264 of 1,326 combos get hereFold 81.4%Call 18.6%
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 80bb?
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, 80bb: the cutoff (CO) folds 81.4% and calls 18.6%. Always call: KK+, JJ, 99, AKs, AKo. Mixed: 55.
- Always fold
- AQs, A4s-A6s, A2s, K8s, K4s-K5s, J8s, 76s, 54s, ATo, KJo
- Always call
- KK+, JJ, 99, AKs, AKo
- Mixed
- 55
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.