PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN iso raise 2bb

SB vs BTN iso raise 2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · CO limps, BTN isolates to 2bb · Small 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 · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 5.14bbYour cards?

0.5bb

1bb

2bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here

Fold 85%Call 8.6%Raise 4/6bb 6.4%

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

What is the GTO play for the small blind (SB) when CO limps, BTN isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

CO limps, BTN isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the small blind (SB) folds 85%, calls 8.6% and raises 4/6bb 6.4%. Always call: KK, 66. Always raise 4/6bb: AJs. Mixed: AA, 77-QQ, 22-55, AQs+, A2s-ATs, K9s+, K5s-K6s, Q9s+, JTs, T8s+, 98s, 87s, 76s, 65s, 54s, ATo+, KQo, QJo.

Always fold: K7s-K8s, K2s-K4s, Q2s-Q8s, J2s-J9s, T2s-T7s, 92s-97s, 82s-86s, 72s-75s, 62s-64s, 52s-53s, 42s+, 32s, A2o-A9o, K2o-KJo, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: KK, 66
Always raise 4/6bb: AJs
Mixed: AA, 77-QQ, 22-55, AQs+, A2s-ATs, K9s+, K5s-K6s, Q9s+, JTs, T8s+, 98s, 87s, 76s, 65s, 54s, ATo+, KQo, QJo

Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.