PokerSolver/4-max · 100bb · 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) · 100bb · 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

Tournament

4-max · 100bb · 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 85.1%Call 6%Raise 4/6bb 8.9%

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 100bb?

CO limps, BTN isolates to 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the small blind (SB) folds 85.1%, calls 6% and raises 4/6bb 8.9%. Always call: AJs, A6s. Always raise 4/6bb: KK+, AQs, KQs. Mixed: 22-QQ, AKs, A7s-ATs, A3s-A5s, K6s-KJs, Q9s+, JTs, T8s+, 98s, 87s, 65s, 54s, AJo+, KQo.

Always fold: A2s, K2s-K5s, Q2s-Q8s, J2s-J9s, T2s-T7s, 92s-97s, 82s-86s, 72s+, 62s-64s, 52s-53s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: AJs, A6s
Always raise 4/6bb: KK+, AQs, KQs
Mixed: 22-QQ, AKs, A7s-ATs, A3s-A5s, K6s-KJs, Q9s+, JTs, T8s+, 98s, 87s, 65s, 54s, AJo+, KQo

Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.