PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BTN 3-bet 4bb

CO vs BTN 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2bb, BTN 3-bets to 4bb · Cutoff to act

5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 8.3bbYour cards?
2bb
4bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

498 of 1,326 combos get here
Fold 0.6%Call 85.9%Raise 9.2bb 8.6%All-in 149.84bb 5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO opens 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the cutoff (CO) folds 0.6%, calls 85.9%, raises 9.2bb 8.6% and goes all-in 149.84bb 5%. Always call: 88-99, 22-55, A8s-A9s, A2s-A5s, K7s-KTs, K4s-K5s, Q5s+, J7s+, T7s-T8s, 97s, 86s, 75s+, 54s, A7o-AJo, A5o, K9o+, Q9o+, JTo, T9o. Always raise 9.2bb: AQs, KQs. Mixed: TT+, 66-77, AKs, ATs-AJs, A6s-A7s, KJs, T9s, 98s, 87s, 65s, AQo.

Always fold
No hand plays this every time
Always call
88-99, 22-55, A8s-A9s, A2s-A5s, K7s-KTs, K4s-K5s, Q5s+, J7s+, T7s-T8s, 97s, 86s, 75s+, 54s, A7o-AJo, A5o, K9o+, Q9o+, JTo, T9o
Always raise 9.2bb
AQs, KQs
Always all-in 149.84bb
No hand plays this every time
Mixed
TT+, 66-77, AKs, ATs-AJs, A6s-A7s, KJs, T9s, 98s, 87s, 65s, AQo
Settings: 5-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.