PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB 3-bet 7.5bb

BB vs SB 3-bet 7.5bb

Heads-up · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 100bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb · Big blind to act

Heads-up · 100bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 10bbYour cards?
2.5bb
7.5bb

Tap your two cards.

Big blind's range

1,010 of 1,326 combos get here
Fold 73.2%Call 13.1%Raise 17.25bb 13%All-in 100bb 0.7%
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 · 5% rake, cap 3bb at 100bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb in Heads-up · SB 0.5bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 73.2%, calls 13.1%, raises 17.25bb 13% and goes all-in 100bb 0.7%. Always call: Q8s. Always raise 17.25bb: JJ+, AKo. Mixed: 77-TT, 22-55, A9s+, A2s-A7s, K6s+, K4s, Q9s+, Q5s-Q7s, Q2s-Q3s, J9s+, J6s, J2s, T2s+, 97s+, 95s, 74s+, 64s+, 54s, ATo-AQo, A8o, KJo+, QTo+, JTo.

Always fold
K5s, K2s-K3s, Q4s, J7s-J8s, J5s, J3s, 96s, 94s, 86s+, 83s-84s, 72s-73s, 62s-63s, 52s-53s, 42s+, 32s, A9o, A3o-A7o, K8o-KTo, K3o, Q9o, Q6o, Q2o, J6o-J9o, T9o, T3o-T7o, 98o, 94o-96o, 86o+, 75o+, 64o+, 52o-53o, 42o+, 32o
Always call
Q8s
Always raise 17.25bb
JJ+, AKo
Always all-in 100bb
No hand plays this every time
Mixed
77-TT, 22-55, A9s+, A2s-A7s, K6s+, K4s, Q9s+, Q5s-Q7s, Q2s-Q3s, J9s+, J6s, J2s, T2s+, 97s+, 95s, 74s+, 64s+, 54s, ATo-AQo, A8o, KJo+, QTo+, JTo
Settings: Heads-up · 100bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 100bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 14.45). 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: GGPoker regular cash NL2, NL10 (rake cap 2.5bb there, 3bb here).

Close: GGPoker regular cash NL50 (rake cap 2bb there, 3bb here).

Close: PokerStars cash NL10 (rake cap 5bb there, 3bb here; 4.25% rake there, 5% here; no rake when no flop is dealt there).

Close: PokerStars cash NL50 (rake cap 1.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL2, NL10 (rake cap 2.5bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 2bb there, 3bb here; only its tables without antes).

Close: WPT Global cash NL10, NL20 (4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL100, NL200 (rake cap 2bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: Natural8 regular cash NL2, NL10 (rake cap 2.5bb there, 3bb here).

Close: Natural8 regular cash NL50 (rake cap 2bb there, 3bb here).

Close: ACR Poker cash NL10 (rake cap 5bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

CoinPoker tables with antes: their own chart.

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); pokerstars.com/poker/room/rake (fetched 2026-10-31); coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; wptglobal.com/poker/poker-table-rake (fetched 2026-10-31); natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).

Rake: Wrong rake for GG: this solve caps the rake at 3bb, but GG caps heads-up NL200 at $1.50 (0.75bb). A solve with GG's cap is queued.