PokerSolver
PokerSolver/Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/SB vs BB iso raise 2.5bb

SB vs BB iso raise 2.5bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB limps, BB isolates to 2.5bb · Small blind / button to act

Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 3.82bbYour cards?
1bb
2.5bb

Tap your two cards.

Small blind / button's range

1,212 of 1,326 combos get here
Fold 22.2%Call 53%Raise 5/7.5bb 24.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind / button (SB) when SB limps, BB isolates to 2.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB limps, BB isolates to 2.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the small blind / button (SB) folds 22.2%, calls 53% and raises 5/7.5bb 24.8%. Always call: 22-33, K2s-K4s, Q5s-Q6s, Q2s, J2s-J6s, T4s-T7s, T2s, 96s, 92s-94s, 82s-84s, 52s, 42s, 32s, A6o-A8o, A4o, A2o, K9o, K6o-K7o, Q9o-QTo, Q6o-Q7o, J7o-J9o, T8o+, 98o, 87o, 75o+, 65o, 54o. Always raise 5/7.5bb: 77+, AQs+, A9s, ATo+, KJo+. Mixed: 66, 44, A7s-A8s, A4s, A2s, K9s, K5s-K7s, Q7s, Q3s-Q4s, JTs, J7s-J8s, T3s, 97s, 95s, 85s+, 72s-75s, 65s, 62s-63s, 43s, A9o, A5o, A3o, KTo, K8o, K2o-K5o, QJo, Q8o, Q2o-Q5o, JTo, J3o-J6o, T6o-T7o, T4o, 97o, 86o, 53o.

Always fold
J2o, T5o, T2o-T3o, 92o-95o, 83o-85o, 73o-74o, 63o-64o, 52o, 43o
Always call
22-33, K2s-K4s, Q5s-Q6s, Q2s, J2s-J6s, T4s-T7s, T2s, 96s, 92s-94s, 82s-84s, 52s, 42s, 32s, A6o-A8o, A4o, A2o, K9o, K6o-K7o, Q9o-QTo, Q6o-Q7o, J7o-J9o, T8o+, 98o, 87o, 75o+, 65o, 54o
Always raise 5/7.5bb
77+, AQs+, A9s, ATo+, KJo+
Mixed
66, 44, A7s-A8s, A4s, A2s, K9s, K5s-K7s, Q7s, Q3s-Q4s, JTs, J7s-J8s, T3s, 97s, 95s, 85s+, 72s-75s, 65s, 62s-63s, 43s, A9o, A5o, A3o, KTo, K8o, K2o-K5o, QJo, Q8o, Q2o-Q5o, JTo, J3o-J6o, T6o-T7o, T4o, 97o, 86o, 53o
Settings: Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 22.38). 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.