PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB iso raise 3bb

BB vs SB iso raise 3bb

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

Fits exactlyno game we have checked

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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 5.64bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 89.2%Call 5.2%Raise 6/9bb 5.6%

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, SB isolates to 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

CO limps, SB isolates to 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 89.2%, calls 5.2% and raises 6/9bb 5.6%. Always call: 77. Always raise 6/9bb: AA, AKs. Mixed: 88-KK, 22-66, A3s-AQs, K8s+, QTs+, Q5s-Q6s, JTs, J8s, T8s, 96s, 65s, 54s, AQo+.

Always fold: A2s, K2s-K7s, Q7s-Q9s, Q2s-Q4s, J9s, J2s-J7s, T9s, T2s-T7s, 97s+, 92s-95s, 82s+, 72s+, 62s-64s, 52s-53s, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 77
Always raise 6/9bb: AA, AKs
Mixed: 88-KK, 22-66, A3s-AQs, K8s+, QTs+, Q5s-Q6s, JTs, J8s, T8s, 96s, 65s, 54s, AQo+

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.