PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB call

BB vs SB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO limps, BTN isolates to 3bb, SB calls · Big blind to act

Fits exactlyno game we have checked

Close1 games

CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 8.64bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 88.1%Call 5.1%Raise 6/9bb 6.8%

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

What is the GTO play for the big blind (BB) when CO limps, BTN isolates to 3bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

CO limps, BTN isolates to 3bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 88.1%, calls 5.1% and raises 6/9bb 6.8%. Always call: TT. Always raise 6/9bb: QQ+, AKo. Mixed: JJ, 22-99, A8s+, A5s-A6s, A3s, K8s+, K6s, K4s, Q8s+, Q5s, JTs, J6s-J8s, J4s, T9s, T7s, T3s, 97s+, 87s, 75s, 64s, AQo, KJo, JTo.

Always fold: A7s, A4s, A2s, K7s, K5s, K2s-K3s, Q6s-Q7s, Q2s-Q4s, J9s, J5s, J2s-J3s, T8s, T4s-T6s, T2s, 92s-96s, 82s-86s, 76s, 72s-74s, 65s, 62s-63s, 52s+, 42s+, 32s, A2o-AJo, KQo, K2o-KTo, Q2o+, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: TT
Always raise 6/9bb: QQ+, AKo
Mixed: JJ, 22-99, A8s+, A5s-A6s, A3s, K8s+, K6s, K4s, Q8s+, Q5s, JTs, J6s-J8s, J4s, T9s, T7s, T3s, 97s+, 87s, 75s, 64s, AQo, KJo, JTo

Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.

Rake sources for the games it fits: 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.