PokerSolver
PokerSolver/6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 3-bet 7.5bb

SB vs BTN 3-bet 7.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 40bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb · Small blind to act

6-max · 40bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 11.96bbYour cards?
2.5bb
1bb
7.5bb

Tap your two cards.

Small blind's range

444 of 1,326 combos get here
Fold 56.6%Call 7.6%All-in 39.84bb 35.8%
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 2.5bb, BTN 3-bets to 7.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 40bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 40bb: the small blind (SB) folds 56.6%, calls 7.6% and goes all-in 39.84bb 35.8%. Always all-in 39.84bb: TT-QQ, AJs+, AJo+. Mixed: KK+, 55-99, A3s-ATs, K7s+, K5s, Q9s+, JTs, J8s, T8s+, 98s, 96s, 87s, 53s, A8o-ATo, KJo+, QTo.

Always fold
Q7s-Q8s, J9s, J7s, T7s, 97s, 86s, 75s+, 65s, 54s, KTo, QJo, JTo, T9o
Always call
No hand plays this every time
Always all-in 39.84bb
TT-QQ, AJs+, AJo+
Mixed
KK+, 55-99, A3s-ATs, K7s+, K5s, Q9s+, JTs, J8s, T8s+, 98s, 96s, 87s, 53s, A8o-ATo, KJo+, QTo
Settings: 6-max · 40bb · 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, 40bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.93). 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.