PokerSolver
PokerSolver/6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs HJ 4-bet 20.7bb

SB vs HJ 4-bet 20.7bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · HJ opens 3bb, SB 3-bets to 9bb, HJ 4-bets to 20.7bb · Small blind to act

6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 31.66bbYour cards?
9bb
1bb
20.7bb

Tap your two cards.

Small blind's range

232 of 1,326 combos get here
Fold 42.8%Call 49.2%All-in 149.84bb 8%
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 3bb, SB 3-bets to 9bb, HJ 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

HJ opens 3bb, SB 3-bets to 9bb, HJ 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the small blind (SB) folds 42.8%, calls 49.2% and goes all-in 149.84bb 8%. Always call: 44-KK, ATs+, 76s, 65s, 54s. Always all-in 149.84bb: AA. Mixed: A7s-A9s, A3s-A5s, KJs+, J9s+, T9s, 87s, AKo.

Always fold
A6s, K9s-KTs, K6s, QTs+, AQo, KQo
Always call
44-KK, ATs+, 76s, 65s, 54s
Always all-in 149.84bb
AA
Mixed
A7s-A9s, A3s-A5s, KJs+, J9s+, T9s, 87s, AKo
Settings: 6-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 24.4). 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.