PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs CO 4-bet 11.5bb

BTN vs CO 4-bet 11.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb · 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
Tournament
4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 18.64bbYour cards?
5bb
0.5bb
1bb
11.5bb

Tap your two cards.

Button's range

338 of 1,326 combos get here
Fold 14.8%Call 66.7%Raise 25.3bb 18.5%All-in 199.84bb 0%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the button (BTN) folds 14.8%, calls 66.7% and raises 25.3bb 18.5%. Always call: JJ, 22-99, ATs-AJs, K9s+, K5s-K6s, QTs+, JTs, 87s, 65s, 54s. Always raise 25.3bb: KK+, AQs. Mixed: QQ, TT, AKs, A7s-A9s, A4s-A5s, A2s, K7s, K3s, Q8s-Q9s, T8s+, 97s+, 76s, AJo+, KTo+, QJo, JTo.

Always fold
No hand plays this every time
Always call
JJ, 22-99, ATs-AJs, K9s+, K5s-K6s, QTs+, JTs, 87s, 65s, 54s
Always raise 25.3bb
KK+, AQs
Mixed
QQ, TT, AKs, A7s-A9s, A4s-A5s, A2s, K7s, K3s, Q8s-Q9s, T8s+, 97s+, 76s, AJo+, KTo+, QJo, JTo
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.