PokerSolver
PokerSolver/6-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs UTG 4-bet 20.7bb

SB vs UTG 4-bet 20.7bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · UTG opens 3bb, SB 3-bets to 9bb, UTG 4-bets to 20.7bb · 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
6-max · 100bb · 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

220 of 1,326 combos get here
Fold 62%Call 18.8%All-in 99.84bb 19.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when UTG opens 3bb, SB 3-bets to 9bb, UTG 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

UTG opens 3bb, SB 3-bets to 9bb, UTG 4-bets to 20.7bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 62%, calls 18.8% and goes all-in 99.84bb 19.2%. Always call: QQ, AQs, ATs, 65s. Always all-in 99.84bb: KK+, AKs, AKo. Mixed: TT-JJ, 55-88, A8s, A4s-A5s, KTs, 76s.

Always fold
99, A9s, A6s-A7s, A2s-A3s, KJs+, K8s-K9s, Q9s+, JTs, T9s, AJo-AQo, KQo
Always call
QQ, AQs, ATs, 65s
Always all-in 99.84bb
KK+, AKs, AKo
Mixed
TT-JJ, 55-88, A8s, A4s-A5s, KTs, 76s
Settings: 6-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 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.

Tree: Two HRC solves of this game in one, callers first: the callers solve (its raises grow by 1bb, or 1x, for each player who called before) has every one of the 1,323 spots here, so the base solve gives none of them.

This spot: from the callers solve (sizes: opens 2.0bb + 1.0bb, 2.5bb + 1.0bb, 3.0bb + 1.0bb; 3-bets 2.0x + 1.0x, 3.0x + 1.0x; 4-bets 2.3x, all-in; 5-bets all-in; HRC CI 24.58).

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.