PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs SB 3-bet 5bb

CO vs SB 3-bet 5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 2.5bb, SB 3-bets to 5bb · Cutoff to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.3bbYour cards?
2.5bb
5bb
1bb

Tap your two cards.

Cutoff's range

518 of 1,326 combos get here
Fold 14.4%Call 66.9%Raise 11.5bb 14.6%All-in 79.84bb 4.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO opens 2.5bb, SB 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 2.5bb, SB 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the cutoff (CO) folds 14.4%, calls 66.9%, raises 11.5bb 14.6% and goes all-in 79.84bb 4.1%. Always call: 22-99, AQs, A8s-A9s, A4s-A6s, K3s-K7s, QTs, Q8s, Q5s, J9s+, T9s, T6s-T7s, 86s+, 65s, 54s, QJo, T9o. Always raise 11.5bb: KK+, AKs. Mixed: TT-QQ, ATs-AJs, A7s, A2s-A3s, K8s+, K2s, QJs, Q9s, Q6s-Q7s, Q4s, J5s-J8s, T8s, 97s+, 75s+, A4o+, K9o+, Q9o-QTo, J9o+.

Always fold
No hand plays this every time
Always call
22-99, AQs, A8s-A9s, A4s-A6s, K3s-K7s, QTs, Q8s, Q5s, J9s+, T9s, T6s-T7s, 86s+, 65s, 54s, QJo, T9o
Always raise 11.5bb
KK+, AKs
Always all-in 79.84bb
No hand plays this every time
Mixed
TT-QQ, ATs-AJs, A7s, A2s-A3s, K8s+, K2s, QJs, Q9s, Q6s-Q7s, Q4s, J5s-J8s, T8s, 97s+, 75s+, A4o+, K9o+, Q9o-QTo, J9o+
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.