PokerSolver
PokerSolver/3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bb/SB vs BTN 4-bet 20.6bb

SB vs BTN 4-bet 20.6bb

3-handed · SB 0.4bb · 5% rake, cap 10bb (blinds 0.4/1bb) · 100bb · BTN opens 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb · Small blind to act

3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bbChange game
Stacks (bb), if they differ
Pot 30.6bbYour cards?
9bb
1bb
20.6bb

Tap your two cards.

Small blind's range

722 of 1,326 combos get here
Fold 80.2%Call 11.6%All-in 100bb 8.2%
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 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb in 3-handed · SB 0.4bb · 5% rake, cap 10bb at 100bb?

BTN opens 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb in 3-handed · SB 0.4bb · 5% rake, cap 10bb, 100bb: the small blind (SB) folds 80.2%, calls 11.6% and goes all-in 100bb 8.2%. Always call: KQs. Mixed: 44+, 22, A6s+, A2s-A4s, KTs-KJs, K8s, K6s, QJs, Q9s, Q7s, Q5s, J8s-J9s, J2s, T8s+, T2s, 98s, 87s, 74s-75s, 43s, AKo, ATo, A7o, KJo+.

Always fold
A5s, K9s, K7s, K3s-K4s, QTs, Q8s, Q6s, Q3s-Q4s, JTs, J6s-J7s, J3s, 96s, 86s, 72s, 64s, 52s+, AJo-AQo, A8o-A9o, A5o-A6o, K9o-KTo, K6o-K7o, QJo, Q9o
Always call
KQs
Always all-in 100bb
No hand plays this every time
Mixed
44+, 22, A6s+, A2s-A4s, KTs-KJs, K8s, K6s, QJs, Q9s, Q7s, Q5s, J8s-J9s, J2s, T8s+, T2s, 98s, 87s, 74s-75s, 43s, AKo, ATo, A7o, KJo+
Settings: 3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bb (small blind 0.4bb, big blind 1bb, 100bb stacks, 5% rake capped at 10bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC). 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: GGPoker regular cash NL5 (rake cap 5bb there, 10bb here).

Close: CoinPoker cash NL5 (rake cap 6bb there, 10bb here; only its tables without antes).

Close: Natural8 regular cash NL5 (rake cap 5bb there, 10bb here).

Close: ACR Poker cash NL5 (rake cap 20bb there, 10bb here; its page does not say whether pots that end before the flop are raked).

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).

Rake: Wrong rake for a 3-handed GG table: this solve caps the rake at 10bb, which is right only for a 6-max hand folded to the button. GG caps an NL5 table with 3 players dealt in at $0.25 (5bb). A solve with GG's cap is queued.