PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BB 4-bet 20.7bb

SB vs BB 4-bet 20.7bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 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
5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 30.5bbYour cards?
9bb
20.7bb

Tap your two cards.

Small blind's range

614 of 1,326 combos get here
Fold 64.7%Call 22.8%Raise 45.54bb 12.5%All-in 199.84bb <0.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

SB limps, BB isolates to 3bb, SB 3-bets to 9bb, BB 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the small blind (SB) folds 64.7%, calls 22.8%, raises 45.54bb 12.5% and goes all-in 199.84bb 0%. Always call: 22-99, A9s-AQs, A5s, KTs+, QTs+, J9s+, T9s, 87s, 76s, 65s. Always raise 45.54bb: KK+, AKs, A6s, AKo. Mixed: TT-QQ, A8s, A2s-A4s, K4s-K9s, T8s, 98s, 54s, AQo, ATo.

Always fold
K2s-K3s, Q8s-Q9s, Q5s-Q6s, Q2s-Q3s, J8s, J5s, T7s, T5s, 95s-97s, 85s-86s, 75s, 64s, 53s, 43s, AJo, A2o-A9o, K8o+, QTo+, J9o+, T8o+
Always call
22-99, A9s-AQs, A5s, KTs+, QTs+, J9s+, T9s, 87s, 76s, 65s
Always raise 45.54bb
KK+, AKs, A6s, AKo
Always all-in 199.84bb
No hand plays this every time
Mixed
TT-QQ, A8s, A2s-A4s, K4s-K9s, T8s, 98s, 54s, AQo, ATo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.