PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 4-bet 17.25bb

SB vs BTN 4-bet 17.25bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN opens 2.5bb, SB 3-bets to 7.5bb, BTN 4-bets to 17.25bb · 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 · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 26.55bbYour cards?
7.5bb
1bb
17.25bb

Tap your two cards.

Small blind's range

350 of 1,326 combos get here
Fold 43.4%Call 44.7%All-in 149.84bb 11.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN opens 2.5bb, SB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

BTN opens 2.5bb, SB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the small blind (SB) folds 43.4%, calls 44.7% and goes all-in 149.84bb 11.9%. Always call: QQ, 33-TT, A8s-AQs, KTs+, QTs+, JTs, 98s, 87s, 76s, 65s, 54s, AQo. Always all-in 149.84bb: KK+, AKs, AKo. Mixed: JJ, A2s-A7s, K8s-K9s, J9s, T8s+.

Always fold
K4s-K7s, Q9s, J8s, T7s, ATo-AJo, KTo+, QTo+, JTo
Always call
QQ, 33-TT, A8s-AQs, KTs+, QTs+, JTs, 98s, 87s, 76s, 65s, 54s, AQo
Always all-in 149.84bb
KK+, AKs, AKo
Mixed
JJ, A2s-A7s, K8s-K9s, J9s, T8s+
Settings: 5-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.