PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 5-bet 37.95bb

SB vs BTN 5-bet 37.95bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN 5-bets to 37.95bb · Small blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 56.84bbYour cards?
17.25bb
1bb
37.95bb

Tap your two cards.

Small blind's range

366 of 1,326 combos get here
Fold 70.1%Call 18.2%All-in 249.84bb 11.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN 5-bets to 37.95bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN 5-bets to 37.95bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the small blind (SB) folds 70.1%, calls 18.2% and goes all-in 249.84bb 11.7%. Always call: 88, 76s. Always all-in 249.84bb: KK. Mixed: AA, 99-QQ, 44-77, A5s+, A3s, KJs, K9s, QTs, J9s+, T8s, 96s-97s, 87s, AKo.

Always fold
A4s, A2s, KQs, KTs, K6s-K8s, K4s, Q5s, T9s, T6s, 98s, 86s, 65s, 53s, AQo, KJo+, QTo, JTo
Always call
88, 76s
Always all-in 249.84bb
KK
Mixed
AA, 99-QQ, 44-77, A5s+, A3s, KJs, K9s, QTs, J9s+, T8s, 96s-97s, 87s, AKo
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.