PokerSolver
PokerSolver/4-max · 80bb · 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) · 80bb · CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb · 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
4-max · 80bb · 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

448 of 1,326 combos get here
Fold 65.1%Call 22.3%All-in 79.84bb 12.6%
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 80bb?

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, 80bb: the button (BTN) folds 65.1%, calls 22.3% and goes all-in 79.84bb 12.6%. Always call: AA, 55-88, ATs-AQs, KTs+, QTs+, JTs, 76s. Always all-in 79.84bb: QQ-KK, TT, AKs, A4s-A5s, AKo. Mixed: JJ, 99, A7s-A8s, A3s, K9s, T8s+, 87s, 65s, AQo, KQo.

Always fold
33-44, A6s, A2s, K2s-K8s, Q8s-Q9s, Q5s-Q6s, Q3s, J8s-J9s, 98s, A9o-AJo, KTo-KJo, QTo+, JTo
Always call
AA, 55-88, ATs-AQs, KTs+, QTs+, JTs, 76s
Always all-in 79.84bb
QQ-KK, TT, AKs, A4s-A5s, AKo
Mixed
JJ, 99, A7s-A8s, A3s, K9s, T8s+, 87s, 65s, AQo, KQo
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; 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.