PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/CO vs BTN iso raise 2.5bb

CO vs BTN iso raise 2.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BTN isolates to 2.5bb · Cutoff to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 5.64bbYour cards?
1bb
2.5bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

470 of 1,326 combos get here
Fold <0.1%Call 75.5%Raise 5/7.5bb 24.4%
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 in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO limps, BTN isolates to 2.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the cutoff (CO) folds 0%, calls 75.5% and raises 5/7.5bb 24.4%. Always call: 66, 22-33, A2s, K2s-K8s, Q6s-Q9s, J7s-J8s, T7s, 97s+, 86s+, 75s, 64s, 54s, A9o-AJo, A5o, KTo-KJo, QTo+, JTo, T9o. Always raise 5/7.5bb: JJ+, A9s+, KTs+, QJs, J9s+, T9s. Mixed: 77-TT, 44-55, A3s-A8s, K9s, T8s, 76s, 65s, AQo, KQo.

Always fold
No hand plays this every time
Always call
66, 22-33, A2s, K2s-K8s, Q6s-Q9s, J7s-J8s, T7s, 97s+, 86s+, 75s, 64s, 54s, A9o-AJo, A5o, KTo-KJo, QTo+, JTo, T9o
Always raise 5/7.5bb
JJ+, A9s+, KTs+, QJs, J9s+, T9s
Mixed
77-TT, 44-55, A3s-A8s, K9s, T8s, 76s, 65s, AQo, KQo
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.