PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 4-bet 17.25bb

BTN vs CO 4-bet 17.25bb

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 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
Tournament
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 27.05bbYour cards?
7.5bb
0.5bb
1bb
17.25bb

Tap your two cards.

Button's range

374 of 1,326 combos get here
Fold 25.9%Call 62.2%Raise 37.95bb 11%All-in 249.84bb 0.9%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the button (BTN) folds 25.9%, calls 62.2%, raises 37.95bb 11% and goes all-in 249.84bb 0.9%. Always call: QQ, 22-TT, AJs, A9s, A4s, A2s, KJs+, K7s-K9s, K4s, QTs+, J8s-J9s, T9s, T7s, 97s, 87s, 76s, 64s+, 54s. Always raise 37.95bb: AA, AKs. Mixed: KK, JJ, AQs, ATs, A5s-A8s, A3s, KTs, K5s-K6s, Q8s-Q9s, JTs, T8s, 98s, 86s, AJo+, KJo+, JTo.

Always fold
ATo, KTo, QTo+
Always call
QQ, 22-TT, AJs, A9s, A4s, A2s, KJs+, K7s-K9s, K4s, QTs+, J8s-J9s, T9s, T7s, 97s, 87s, 76s, 64s+, 54s
Always raise 37.95bb
AA, AKs
Always all-in 249.84bb
No hand plays this every time
Mixed
KK, JJ, AQs, ATs, A5s-A8s, A3s, KTs, K5s-K6s, Q8s-Q9s, JTs, T8s, 98s, 86s, AJo+, KJo+, 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.