PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 4-bet 17.25bb

SB vs BTN 4-bet 17.25bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · 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
4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 26.39bbYour cards?
7.5bb
1bb
17.25bb

Tap your two cards.

Small blind's range

362 of 1,326 combos get here
Fold 44.2%Call 40.9%Raise 37.95bb 10.8%All-in 249.84bb 4.2%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2.5bb, SB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the small blind (SB) folds 44.2%, calls 40.9%, raises 37.95bb 10.8% and goes all-in 249.84bb 4.2%. Always call: 88-99, 22-66, AJs, A9s, KJs, 87s, 75s+. Always raise 37.95bb: AA. Always all-in 249.84bb: AKo. Mixed: TT-KK, 77, AQs+, ATs, A2s-A8s, KQs, K9s-KTs, K6s, Q9s+, J8s+, T9s, 97s+, 65s, 54s, AQo.

Always fold
K7s-K8s, K5s, K3s, Q8s, Q5s, J7s, T7s-T8s, ATo-AJo, KTo+, QJo, JTo
Always call
88-99, 22-66, AJs, A9s, KJs, 87s, 75s+
Always raise 37.95bb
AA
Always all-in 249.84bb
AKo
Mixed
TT-KK, 77, AQs+, ATs, A2s-A8s, KQs, K9s-KTs, K6s, Q9s+, J8s+, T9s, 97s+, 65s, 54s, AQo
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.

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.