PokerSolver
PokerSolver/6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs SB 3-bet 5bb

CO vs SB 3-bet 5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2.5bb, SB 3-bets to 5bb · Cutoff to act

6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.46bbYour cards?
2.5bb
5bb
1bb

Tap your two cards.

Cutoff's range

514 of 1,326 combos get here
Fold 4%Call 82.9%Raise 11.5bb 11.4%All-in 149.84bb 1.7%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO opens 2.5bb, SB 3-bets to 5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the cutoff (CO) folds 4%, calls 82.9%, raises 11.5bb 11.4% and goes all-in 149.84bb 1.7%. Always call: TT, 22-88, A9s-AJs, A4s-A7s, K3s-K8s, QJs, Q4s-Q8s, J8s+, J6s, T6s-T7s, 97s+, 86s, 75s+, 64s, 54s, A9o, A4o, K9o-KJo, Q9o+, J9o+, T9o. Always raise 11.5bb: AA. Mixed: JJ-KK, 99, AQs+, A8s, A2s-A3s, K9s+, Q9s-QTs, J7s, T8s+, 87s, 65s, ATo+, A5o-A8o, KQo.

Always fold
No hand plays this every time
Always call
TT, 22-88, A9s-AJs, A4s-A7s, K3s-K8s, QJs, Q4s-Q8s, J8s+, J6s, T6s-T7s, 97s+, 86s, 75s+, 64s, 54s, A9o, A4o, K9o-KJo, Q9o+, J9o+, T9o
Always raise 11.5bb
AA
Always all-in 149.84bb
No hand plays this every time
Mixed
JJ-KK, 99, AQs+, A8s, A2s-A3s, K9s+, Q9s-QTs, J7s, T8s+, 87s, 65s, ATo+, A5o-A8o, KQo
Settings: 6-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 24.4). 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.