PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 4-bet 13.8bb

BTN vs CO 4-bet 13.8bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 3bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb · Button to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 22.1bbYour cards?
6bb
0.5bb
1bb
13.8bb

Tap your two cards.

Button's range

316 of 1,326 combos get here
Fold 41%Call 48.2%All-in 79.84bb 10.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 3bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 3bb, BTN 3-bets to 6bb, CO 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the button (BTN) folds 41%, calls 48.2% and goes all-in 79.84bb 10.8%. Always call: JJ-QQ, 33-99, AJs-AQs, KTs+, QTs, JTs, T8s+, 98s, 87s, 76s, 54s, AQo. Always all-in 79.84bb: KK, AKo. Mixed: AA, TT, AKs, ATs, A7s-A8s, A3s-A5s, K8s-K9s, K6s, J8s-J9s, AJo.

Always fold
A6s, A2s, K7s, K5s, Q9s, ATo, KTo+, QTo+, JTo
Always call
JJ-QQ, 33-99, AJs-AQs, KTs+, QTs, JTs, T8s+, 98s, 87s, 76s, 54s, AQo
Always all-in 79.84bb
KK, AKo
Mixed
AA, TT, AKs, ATs, A7s-A8s, A3s-A5s, K8s-K9s, K6s, J8s-J9s, AJo
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.