PokerSolver
PokerSolver/Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 3-bet 7.5bb

BB vs SB 3-bet 7.5bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb · Big blind to act

Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 10.32bbYour cards?
2.5bb
7.5bb

Tap your two cards.

Big blind's range

1,094 of 1,326 combos get here
Fold 70.5%Call 13.8%Raise 17.25bb 13%All-in 79.84bb 2.7%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the big blind (BB) folds 70.5%, calls 13.8%, raises 17.25bb 13% and goes all-in 79.84bb 2.7%. Always call: 66, 44, A6s-A7s. Always raise 17.25bb: JJ+, AKs. Mixed: 77-TT, 55, 22, A8s-AQs, A2s-A5s, K2s+, Q4s+, Q2s, J4s+, J2s, T6s+, T2s, 98s, 84s+, 75s+, 54s, A6o+, KTo+, K7o, QTo+, JTo.

Always fold
33, Q3s, J3s, T3s-T5s, 96s-97s, 92s-94s, 82s-83s, 74s, 72s, 62s+, 52s-53s, 43s, 32s, A4o-A5o, A2o, K8o-K9o, K5o-K6o, K2o, Q7o-Q9o, Q5o, J5o-J8o, T6o+, T2o, 96o+, 84o+, 75o+, 65o, 63o, 52o-53o
Always call
66, 44, A6s-A7s
Always raise 17.25bb
JJ+, AKs
Always all-in 79.84bb
No hand plays this every time
Mixed
77-TT, 55, 22, A8s-AQs, A2s-A5s, K2s+, Q4s+, Q2s, J4s+, J2s, T6s+, T2s, 98s, 84s+, 75s+, 54s, A6o+, KTo+, K7o, QTo+, JTo
Settings: Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 22.38). 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.