PokerSolver
PokerSolver/6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BTN 4-bet 11.5bb

CO vs BTN 4-bet 11.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb · Cutoff to act

6-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 18.96bbYour cards?
5bb
11.5bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

220 of 1,326 combos get here
Fold 15.5%Call 65%Raise 25.3bb 19.5%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, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the cutoff (CO) folds 15.5%, calls 65%, raises 25.3bb 19.5% and goes all-in 249.84bb 0.1%. Always call: TT-QQ, 77, ATs, KJs, QTs+, J9s. Always raise 25.3bb: AA. Mixed: 99, 44-55, A8s-A9s, A4s-A6s, KQs, K9s-KTs, 87s, AQo.

Always fold
No hand plays this every time
Always call
TT-QQ, 77, ATs, KJs, QTs+, J9s
Always raise 25.3bb
AA
Always all-in 249.84bb
No hand plays this every time
Mixed
99, 44-55, A8s-A9s, A4s-A6s, KQs, K9s-KTs, 87s, AQo
Settings: 6-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 29.27). 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.