PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 5-bet 20.24bb

SB vs BTN 5-bet 20.24bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb, SB 4-bets to 9.2bb, BTN 5-bets to 20.24bb · Small blind to act

4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 31.08bbYour cards?
9.2bb
1bb
20.24bb

Tap your two cards.

Small blind's range

462 of 1,326 combos get here
Fold 66.7%Call 19.5%All-in 199.84bb 13.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb, SB 4-bets to 9.2bb, BTN 5-bets to 20.24bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

BTN limps, SB isolates to 2bb, BTN 3-bets to 4bb, SB 4-bets to 9.2bb, BTN 5-bets to 20.24bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the small blind (SB) folds 66.7%, calls 19.5% and goes all-in 199.84bb 13.8%. Always call: AQs. Mixed: 99+, 66-77, 33-44, AKs, A9s-AJs, A2s-A7s, K7s+, Q8s-QTs, J7s-J8s, T7s+, 97s, 86s+, 75s+, 54s, AQo+, ATo, A8o, QJo.

Always fold
K4s, J9s+, J5s, 98s, 95s, 65s, 63s, 53s, A5o, KTo+, QTo, 65o
Always call
AQs
Always all-in 199.84bb
No hand plays this every time
Mixed
99+, 66-77, 33-44, AKs, A9s-AJs, A2s-A7s, K7s+, Q8s-QTs, J7s-J8s, T7s+, 97s, 86s+, 75s+, 54s, AQo+, ATo, A8o, QJo
Settings: 4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.