PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 3-bet 4bb

BTN vs CO 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BTN isolates to 2bb, CO 3-bets to 4bb · Button 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
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.3bbYour cards?
2bb
0.5bb
1bb
4bb

Tap your two cards.

Button's range

426 of 1,326 combos get here
Fold 5.8%Call 72.6%Raise 9.2bb 15.8%All-in 99.84bb 5.8%
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 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BTN isolates to 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the button (BTN) folds 5.8%, calls 72.6%, raises 9.2bb 15.8% and goes all-in 99.84bb 5.8%. Always call: TT, 22-77, ATs, A8s, A4s-A6s, K6s-K7s, K4s, Q8s, 97s, 87s, 76s, A8o-AJo, KQo, QJo. Always raise 9.2bb: AA, AKs. Mixed: JJ-KK, 88-99, AJs-AQs, A9s, A7s, A2s-A3s, KJs+, K8s-K9s, K5s, Q9s+, J8s+, T7s+, 98s, 96s, 86s, 75s, 64s+, 54s, AQo+, A5o, KTo-KJo, QTo, JTo, T9o.

Always fold
No hand plays this every time
Always call
TT, 22-77, ATs, A8s, A4s-A6s, K6s-K7s, K4s, Q8s, 97s, 87s, 76s, A8o-AJo, KQo, QJo
Always raise 9.2bb
AA, AKs
Always all-in 99.84bb
No hand plays this every time
Mixed
JJ-KK, 88-99, AJs-AQs, A9s, A7s, A2s-A3s, KJs+, K8s-K9s, K5s, Q9s+, J8s+, T7s+, 98s, 96s, 86s, 75s, 64s+, 54s, AQo+, A5o, KTo-KJo, QTo, JTo, T9o
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.