PokerSolver
PokerSolver/6-max · 20bb · 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) · 20bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb · Small blind to act

6-max · 20bb · 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

468 of 1,326 combos get here
Fold 35.2%Call 32.6%All-in 19.84bb 32.3%
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 20bb?

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, 20bb: the small blind (SB) folds 35.2%, calls 32.6% and goes all-in 19.84bb 32.3%. Always call: T8s, A7o. Always all-in 19.84bb: TT+, AJs, AQo. Mixed: 55-88, AQs+, A3s-ATs, K5s+, Q8s+, J7s+, T9s, T7s, 97s+, 87s, 75s, AKo, ATo-AJo, A8o, A4o-A6o, KTo+, Q9o-QTo, J9o+, T9o.

Always fold
65s
Always call
T8s, A7o
Always all-in 19.84bb
TT+, AJs, AQo
Mixed
55-88, AQs+, A3s-ATs, K5s+, Q8s+, J7s+, T9s, T7s, 97s+, 87s, 75s, AKo, ATo-AJo, A8o, A4o-A6o, KTo+, Q9o-QTo, J9o+, T9o
Settings: 6-max · 20bb · 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, 20bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.9). 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.