CO vs BTN 4-bet 20.7bb
5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO limps, BTN isolates to 3bb, CO 3-bets to 9bb, BTN 4-bets to 20.7bb · Cutoff 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
5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 32bbYour cards?
9bb
20.7bb
0.5bb
1bb
Tap your two cards.
Cutoff's range
258 of 1,326 combos get hereFold 55.7%Call 24.3%All-in 79.84bb 20%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the cutoff (CO) when CO limps, BTN isolates to 3bb, CO 3-bets to 9bb, BTN 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?
CO limps, BTN isolates to 3bb, CO 3-bets to 9bb, BTN 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the cutoff (CO) folds 55.7%, calls 24.3% and goes all-in 79.84bb 20%. Always call: 88, 66, AQs, Q9s, AQo. Always all-in 79.84bb: QQ-KK, AKs. Mixed: AA, TT-JJ, 55, A3s-A6s, KQo.
- Always fold
- K7s, J8s, A9o, KJo, JTo
- Always call
- 88, 66, AQs, Q9s, AQo
- Always all-in 79.84bb
- QQ-KK, AKs
- Mixed
- AA, TT-JJ, 55, A3s-A6s, KQo
Settings: 5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.