PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs CO 4-bet 9.2bb

BTN vs CO 4-bet 9.2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO opens 2bb, BTN 3-bets to 4bb, CO 4-bets to 9.2bb · Button to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 15.34bbYour cards?
4bb
0.5bb
1bb
9.2bb

Tap your two cards.

Button's range

366 of 1,326 combos get here
Fold 14.9%Call 70.1%Raise 20.24bb 14.8%All-in 249.84bb 0.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 2bb, BTN 3-bets to 4bb, CO 4-bets to 9.2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO opens 2bb, BTN 3-bets to 4bb, CO 4-bets to 9.2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the button (BTN) folds 14.9%, calls 70.1%, raises 20.24bb 14.8% and goes all-in 249.84bb 0.2%. Always call: JJ-QQ, 99, 22-77, ATs, A6s, KQs, KTs, K5s, T8s, 97s+, 65s, KJo, JTo. Always raise 20.24bb: KK+. Mixed: TT, 88, AJs+, A9s, A7s, A2s-A4s, KJs, K7s-K9s, Q8s+, J8s-J9s, T9s, 86s+, 76s, ATo+, KQo, KTo, QTo.

Always fold
QJo
Always call
JJ-QQ, 99, 22-77, ATs, A6s, KQs, KTs, K5s, T8s, 97s+, 65s, KJo, JTo
Always raise 20.24bb
KK+
Always all-in 249.84bb
No hand plays this every time
Mixed
TT, 88, AJs+, A9s, A7s, A2s-A4s, KJs, K7s-K9s, Q8s+, J8s-J9s, T9s, 86s+, 76s, ATo+, KQo, KTo, QTo
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.