PokerSolver
PokerSolver/5-max · 250bb · 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) · 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
5-max · 250bb · 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

358 of 1,326 combos get here
Fold 45.7%Call 38.6%Raise 37.95bb 10.4%All-in 249.84bb 5.3%
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 250bb?

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, 250bb: the small blind (SB) folds 45.7%, calls 38.6%, raises 37.95bb 10.4% and goes all-in 249.84bb 5.3%. Always call: 88, 22-66, A9s, KQs, QJs, 76s, 65s. Always raise 37.95bb: AA. Always all-in 249.84bb: AKo. Mixed: 99-KK, 77, ATs+, A3s-A8s, KTs-KJs, K6s-K8s, Q8s-QTs, J9s+, T9s, 97s, 87s, 54s, AQo.

Always fold
A2s, K9s, K5s, T7s-T8s, 98s, ATo-AJo, KTo+, QTo+, JTo
Always call
88, 22-66, A9s, KQs, QJs, 76s, 65s
Always raise 37.95bb
AA
Always all-in 249.84bb
AKo
Mixed
99-KK, 77, ATs+, A3s-A8s, KTs-KJs, K6s-K8s, Q8s-QTs, J9s+, T9s, 97s, 87s, 54s, AQo
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.