PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 4-bet 11.5bb

BTN vs CO 4-bet 11.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · 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
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 18.8bbYour cards?
5bb
0.5bb
1bb
11.5bb

Tap your two cards.

Button's range

278 of 1,326 combos get here
Fold 5.2%Call 77.3%Raise 25.3bb 16.9%All-in 249.84bb 0.7%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO opens 2.5bb, BTN 3-bets to 5bb, CO 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the button (BTN) folds 5.2%, calls 77.3%, raises 25.3bb 16.9% and goes all-in 249.84bb 0.7%. Always call: 77-99, 22-55, A8s-ATs, A5s, K9s+, K5s-K6s, QTs, JTs, 98s, 65s, KQo. Always raise 25.3bb: KK. Mixed: AA, TT-QQ, 66, AKs, AJs, A3s, Q9s, J8s, 97s, 87s, 76s, 54s, ATo+, KJo, QJo, JTo.

Always fold
No hand plays this every time
Always call
77-99, 22-55, A8s-ATs, A5s, K9s+, K5s-K6s, QTs, JTs, 98s, 65s, KQo
Always raise 25.3bb
KK
Always all-in 249.84bb
No hand plays this every time
Mixed
AA, TT-QQ, 66, AKs, AJs, A3s, Q9s, J8s, 97s, 87s, 76s, 54s, ATo+, KJo, QJo, JTo
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.