PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs CO 4-bet 17.25bb

BTN vs CO 4-bet 17.25bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb · Button to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 26.89bbYour cards?
7.5bb
0.5bb
1bb
17.25bb

Tap your two cards.

Button's range

394 of 1,326 combos get here
Fold 32.3%Call 62.5%All-in 149.84bb 5.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the button (BTN) folds 32.3%, calls 62.5% and goes all-in 149.84bb 5.2%. Always call: AA, 22-JJ, AQs+, A4s-ATs, K9s+, K5s-K7s, QTs+, J8s+, T8s+, 97s+, 86s+, 75s+, 64s+, 53s+. Mixed: QQ-KK, AJs, A2s-A3s, K8s, K4s, Q9s, 85s, AJo+.

Always fold
Q6s-Q7s, ATo, KTo+, QTo+, JTo
Always call
AA, 22-JJ, AQs+, A4s-ATs, K9s+, K5s-K7s, QTs+, J8s+, T8s+, 97s+, 86s+, 75s+, 64s+, 53s+
Always all-in 149.84bb
No hand plays this every time
Mixed
QQ-KK, AJs, A2s-A3s, K8s, K4s, Q9s, 85s, AJo+
Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.