PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs HJ 4-bet 17.25bb

SB vs HJ 4-bet 17.25bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · HJ opens 2.5bb, SB 3-bets to 7.5bb, HJ 4-bets to 17.25bb · Small blind to act

5-max · 100bb · 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

284 of 1,326 combos get here
Fold 53.1%Call 34.6%All-in 99.84bb 12.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when HJ opens 2.5bb, SB 3-bets to 7.5bb, HJ 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

HJ opens 2.5bb, SB 3-bets to 7.5bb, HJ 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 53.1%, calls 34.6% and goes all-in 99.84bb 12.3%. Always call: QQ, TT, 44-88, AJs+, 76s, 54s. Always all-in 99.84bb: KK+, AKo. Mixed: JJ, 99, A8s-ATs, A3s-A6s, KTs+, J9s, T9s, 98s, 87s, 65s.

Always fold
A7s, A2s, K5s-K9s, Q9s+, JTs, AJo-AQo, KJo+
Always call
QQ, TT, 44-88, AJs+, 76s, 54s
Always all-in 99.84bb
KK+, AKo
Mixed
JJ, 99, A8s-ATs, A3s-A6s, KTs+, J9s, T9s, 98s, 87s, 65s
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.

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.