PokerSolver
PokerSolver/6-max · 200bb · 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) · 200bb · CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb, BTN 4-bets to 11.5bb · Cutoff to act

6-max · 200bb · 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

216 of 1,326 combos get here
Fold 23.3%Call 65.9%Raise 25.3bb 10%All-in 199.84bb 0.8%
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 200bb?

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, 200bb: the cutoff (CO) folds 23.3%, calls 65.9%, raises 25.3bb 10% and goes all-in 199.84bb 0.8%. Always call: 88-TT, 44-66, A7s, KTs-KJs, QJs, Q9s, JTs. Mixed: AA, JJ, A9s-ATs, K9s, AQo, ATo.

Always fold
KQo
Always call
88-TT, 44-66, A7s, KTs-KJs, QJs, Q9s, JTs
Always raise 25.3bb
No hand plays this every time
Always all-in 199.84bb
No hand plays this every time
Mixed
AA, JJ, A9s-ATs, K9s, AQo, ATo
Settings: 6-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 28.67). 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.