PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs SB 4-bet 20.7bb

CO vs SB 4-bet 20.7bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb · Cutoff to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Tournament
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 31.5bbYour cards?
9bb
20.7bb
1bb

Tap your two cards.

Cutoff's range

284 of 1,326 combos get here
Fold 37.4%Call 51.5%Raise 45.54bb 11.1%All-in 249.84bb <0.1%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, SB isolates to 3bb, CO 3-bets to 9bb, SB 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the cutoff (CO) folds 37.4%, calls 51.5%, raises 45.54bb 11.1% and goes all-in 249.84bb 0%. Always call: 77-QQ, 22-44, AJs+, KTs-KJs, QJs, JTs, 97s, 86s+, 75s+, 65s, 54s. Always raise 45.54bb: AA. Mixed: KK, ATs, A2s-A6s, Q9s, J8s-J9s, 98s, AJo-AQo.

Always fold
K9s, K7s, ATo, KJo+, QJo
Always call
77-QQ, 22-44, AJs+, KTs-KJs, QJs, JTs, 97s, 86s+, 75s+, 65s, 54s
Always raise 45.54bb
AA
Always all-in 249.84bb
No hand plays this every time
Mixed
KK, ATs, A2s-A6s, Q9s, J8s-J9s, 98s, AJo-AQo
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 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.

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.