PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs SB 3-bet 7.5bb

CO vs SB 3-bet 7.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · CO opens 2.5bb, SB 3-bets to 7.5bb · Cutoff to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 11.96bbYour cards?
2.5bb
7.5bb
1bb

Tap your two cards.

Cutoff's range

514 of 1,326 combos get here
Fold 50.5%Call 26.7%All-in 39.84bb 22.8%
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 7.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

CO opens 2.5bb, SB 3-bets to 7.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the cutoff (CO) folds 50.5%, calls 26.7% and goes all-in 39.84bb 22.8%. Always call: AA, 66, A8s-AJs, A3s-A4s, K8s, QJs, Q9s, J9s+, T8s+, 98s, 87s, 76s, 65s, 54s, KJo+. Always all-in 39.84bb: 77-KK, 22-44, AQs+, KTs-KJs, AQo+. Mixed: 55, A5s-A7s, KQs, K9s, QTs, 86s, ATo-AJo.

Always fold
A2s, K2s-K7s, Q4s-Q8s, J7s-J8s, T7s, 97s, A3o-A9o, K9o-KTo, Q9o+, J9o+, T9o
Always call
AA, 66, A8s-AJs, A3s-A4s, K8s, QJs, Q9s, J9s+, T8s+, 98s, 87s, 76s, 65s, 54s, KJo+
Always all-in 39.84bb
77-KK, 22-44, AQs+, KTs-KJs, AQo+
Mixed
55, A5s-A7s, KQs, K9s, QTs, 86s, ATo-AJo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.