PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs CO 4-bet 9.2bb

SB vs CO 4-bet 9.2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 2bb, SB 3-bets to 4bb, CO 4-bets to 9.2bb · Small blind to act

4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 14.84bbYour cards?

4bb

1bb

9.2bb

Tap your two cards.

Small blind's range

324 of 1,326 combos get here

Fold 51.9%Call 36.6%All-in 79.84bb 11.5%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO opens 2bb, SB 3-bets to 4bb, CO 4-bets to 9.2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

CO opens 2bb, SB 3-bets to 4bb, CO 4-bets to 9.2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 51.9%, calls 36.6% and goes all-in 79.84bb 11.5%. Always call: 99-TT, 77, 33-55. Mixed: JJ+, 88, 66, AKs, A8s-AJs, A4s-A6s, KTs+, QTs+, JTs, J8s, T8s, 97s, 76s, 65s, AQo+.

Always fold: A2s, K6s, T9s, 87s, AJo, KJo, QTo+, JTo
Always call: 99-TT, 77, 33-55
Always all-in 79.84bb: No hand plays this every time
Mixed: JJ+, 88, 66, AKs, A8s-AJs, A4s-A6s, KTs+, QTs+, JTs, J8s, T8s, 97s, 76s, 65s, AQo+

Settings: 4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.