PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs CO 3-bet 5bb

BTN vs CO 3-bet 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, CO 3-bets to 5bb · Button to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 9.64bbYour cards?

2.5bb

0.5bb

1bb

5bb

Tap your two cards.

Button's range

414 of 1,326 combos get here

Fold 1.1%Call 88.3%Raise 11.5bb 8.9%All-in 249.84bb 1.7%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the button (BTN) folds 1.1%, calls 88.3%, raises 11.5bb 8.9% and goes all-in 249.84bb 1.7%. Always call: JJ, 99, 66, 33-44, ATs, A7s, A5s, A3s, KJs+, K9s, K7s, K3s-K5s, QJs, Q8s-Q9s, J9s+, T9s, 96s, 87s, 76s, 64s+, 54s, A8o-AQo, KQo, KTo, QTo+, JTo. Mixed: QQ+, TT, 77-88, 55, 22, AJs+, A8s-A9s, A6s, A4s, A2s, KTs, K6s, QTs, J8s, T7s-T8s, 97s+, 86s, 75s, AKo, KJo.

Always fold: No hand plays this every time
Always call: JJ, 99, 66, 33-44, ATs, A7s, A5s, A3s, KJs+, K9s, K7s, K3s-K5s, QJs, Q8s-Q9s, J9s+, T9s, 96s, 87s, 76s, 64s+, 54s, A8o-AQo, KQo, KTo, QTo+, JTo
Always raise 11.5bb: No hand plays this every time
Always all-in 249.84bb: No hand plays this every time
Mixed: QQ+, TT, 77-88, 55, 22, AJs+, A8s-A9s, A6s, A4s, A2s, KTs, K6s, QTs, J8s, T7s-T8s, 97s+, 86s, 75s, AKo, KJo

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.