PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 3-bet 7.5bb

BB vs SB 3-bet 7.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb · Big blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 10.64bbYour cards?
2.5bb
7.5bb

Tap your two cards.

Big blind's range

1,094 of 1,326 combos get here
Fold 60.2%Call 29.9%Raise 17.25bb 9.8%All-in 249.84bb 0.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 60.2%, calls 29.9%, raises 17.25bb 9.8% and goes all-in 249.84bb 0.1%. Always call: 77, 22-44, A6s, K6s-K9s, K3s, Q7s-QTs, Q5s, Q3s, J7s-J8s, T7s-T8s, 96s, 64s+, A9o-AJo, A5o, KTo-KJo, QTo, JTo. Always raise 17.25bb: AA, QQ, AQs+, AKo. Mixed: KK, 88-JJ, 55-66, A7s-AJs, A2s-A5s, KJs+, K4s, K2s, Q6s, Q4s, J9s, J5s, T9s, T6s, 98s, 85s+, 75s+, 54s, AQo, A8o, KQo, QJo, T9o.

Always fold
J6s, J2s-J3s, T4s-T5s, T2s, 92s-94s, 82s, 63s, 52s, 42s+, 32s, A7o, A2o-A3o, K7o-K9o, K3o-K4o, Q8o-Q9o, Q3o-Q5o, J4o-J9o, J2o, T4o-T8o, 95o+, 84o+, 76o, 64o, 53o+, 43o
Always call
77, 22-44, A6s, K6s-K9s, K3s, Q7s-QTs, Q5s, Q3s, J7s-J8s, T7s-T8s, 96s, 64s+, A9o-AJo, A5o, KTo-KJo, QTo, JTo
Always raise 17.25bb
AA, QQ, AQs+, AKo
Always all-in 249.84bb
No hand plays this every time
Mixed
KK, 88-JJ, 55-66, A7s-AJs, A2s-A5s, KJs+, K4s, K2s, Q6s, Q4s, J9s, J5s, T9s, T6s, 98s, 85s+, 75s+, 54s, AQo, A8o, KQo, QJo, T9o
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.