PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/CO vs SB 4-bet 20.7bb

CO vs SB 4-bet 20.7bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb · Cutoff to act

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 31.34bbYour cards?
9bb
20.7bb
1bb

Tap your two cards.

Cutoff's range

270 of 1,326 combos get here
Fold 29.8%Call 55.8%Raise 45.54bb 14.2%All-in 199.84bb 0.3%
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 4-bets to 20.7bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the cutoff (CO) folds 29.8%, calls 55.8%, raises 45.54bb 14.2% and goes all-in 199.84bb 0.3%. Always call: QQ-KK, TT, 77, 22-33, AQs, ATs, A2s, KJs, QJs, J9s+, T9s, 97s+, 87s, 75s. Always raise 45.54bb: AA. Mixed: JJ, AKs, A6s-A9s, A3s-A4s, K9s-KTs, K6s, J8s, 76s, 65s, 54s, AJo-AQo, KJo.

Always fold
Q8s-Q9s, ATo, KQo
Always call
QQ-KK, TT, 77, 22-33, AQs, ATs, A2s, KJs, QJs, J9s+, T9s, 97s+, 87s, 75s
Always raise 45.54bb
AA
Always all-in 199.84bb
No hand plays this every time
Mixed
JJ, AKs, A6s-A9s, A3s-A4s, K9s-KTs, K6s, J8s, 76s, 65s, 54s, AJo-AQo, KJo
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; 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.

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.