PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN iso raise 2.5bb

SB vs BTN iso raise 2.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · HJ limps, BTN isolates to 2.5bb · Small blind to act

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.8bbYour cards?
0.5bb
1bb
1bb
2.5bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here
Fold 87.5%Call 8.5%Raise 5/7.5bb 4.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when HJ limps, BTN isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

HJ limps, BTN isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the small blind (SB) folds 87.5%, calls 8.5% and raises 5/7.5bb 4.1%. Always call: KK, KJs, AQo+. Always raise 5/7.5bb: AQs. Mixed: AA, 33-QQ, AKs, A3s-AJs, KQs, KTs, Q9s+, T9s, 76s, AJo, KQo.

Always fold
22, A2s, K2s-K9s, Q2s-Q8s, J2s+, T2s-T8s, 92s+, 82s+, 72s-75s, 62s+, 52s+, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
KK, KJs, AQo+
Always raise 5/7.5bb
AQs
Mixed
AA, 33-QQ, AKs, A3s-AJs, KQs, KTs, Q9s+, T9s, 76s, AJo, KQo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.