PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/SB vs BB 4-bet 17.25bb

SB vs BB 4-bet 17.25bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb · Small blind / button 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

Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differSBBB

Pot 25.07bbYour cards?

7.5bb

17.25bb

Tap your two cards.

Small blind / button's range

714 of 1,326 combos get here

Fold 48.9%Call 44.5%All-in 99.84bb 6.6%

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, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the small blind / button (SB) folds 48.9%, calls 44.5% and goes all-in 99.84bb 6.6%. Always call: AA, 66, K4s, K2s, T6s, 96s-97s, 85s-86s, 74s, 64s, 42s, ATo-AJo, A5o, KJo+, Q9o+, 76o. Always all-in 99.84bb: JJ, AKo. Mixed: QQ-KK, 77-TT, AQs, K3s, Q3s, J3s, T3s, 93s, 73s, 32s, AQo, A6o-A8o, A4o, K9o-KTo, JTo, 87o, 65o.

Always fold: T2s, 94s, 84s, A2o-A3o, K4o-K5o, Q8o, Q6o, J8o, T8o, 75o, 43o
Always call: AA, 66, K4s, K2s, T6s, 96s-97s, 85s-86s, 74s, 64s, 42s, ATo-AJo, A5o, KJo+, Q9o+, 76o
Always all-in 99.84bb: JJ, AKo
Mixed: QQ-KK, 77-TT, AQs, K3s, Q3s, J3s, T3s, 93s, 73s, 32s, AQo, A6o-A8o, A4o, K9o-KTo, JTo, 87o, 65o

Settings: Heads-up · 100bb · 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, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.