PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BTN 3-bet 7.5bb

SB vs BTN 3-bet 7.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb · Small blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 11.64bbYour cards?
2.5bb
1bb
7.5bb

Tap your two cards.

Small blind's range

566 of 1,326 combos get here
Fold 61.4%Call 21.5%Raise 17.25bb 13.1%All-in 149.84bb 4%
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 2.5bb, BTN 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the small blind (SB) folds 61.4%, calls 21.5%, raises 17.25bb 13.1% and goes all-in 149.84bb 4%. Always call: 77, 22-33, QJs, Q3s. Always all-in 149.84bb: AKo. Mixed: 88+, 44-66, A2s+, K5s+, K3s, QTs, Q7s, J7s-J9s, T8s, 98s, 86s+, 75s+, 63s+, 52s, 43s, AJo-AQo, KJo+.

Always fold
K2s, Q8s-Q9s, Q6s, Q4s, Q2s, JTs, T9s, T7s, 95s-97s, 85s, 74s, 53s, A7o-ATo, A5o, K9o-KTo, QTo+, JTo, T9o, 65o
Always call
77, 22-33, QJs, Q3s
Always raise 17.25bb
No hand plays this every time
Always all-in 149.84bb
AKo
Mixed
88+, 44-66, A2s+, K5s+, K3s, QTs, Q7s, J7s-J9s, T8s, 98s, 86s+, 75s+, 63s+, 52s, 43s, AJo-AQo, KJo+
Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.