PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN iso raise 2bb

SB vs BTN iso raise 2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 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
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.3bbYour cards?
0.5bb
1bb
1bb
2bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here
Fold 83.5%Call 9.4%Raise 4/6bb 7.1%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, BTN isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the small blind (SB) folds 83.5%, calls 9.4% and raises 4/6bb 7.1%. Always call: KK. Always raise 4/6bb: 55, AJs, KTs. Mixed: AA, 66-QQ, 22-44, AQs+, A3s-ATs, KJs+, K6s-K9s, QTs+, Q8s, J9s+, T7s+, 97s+, 76s, 65s, 54s, ATo+, KJo+.

Always fold
A2s, K2s-K5s, Q9s, Q2s-Q7s, J2s-J8s, T2s-T6s, 92s-96s, 82s+, 72s-75s, 62s-64s, 52s-53s, 42s+, 32s, A2o-A9o, K2o-KTo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
KK
Always raise 4/6bb
55, AJs, KTs
Mixed
AA, 66-QQ, 22-44, AQs+, A3s-ATs, KJs+, K6s-K9s, QTs+, Q8s, J9s+, T7s+, 97s+, 76s, 65s, 54s, ATo+, KJo+
Settings: 5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 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.

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.