PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB open 2.5bb

BB vs SB open 2.5bb

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

Heads-up · 100bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 3.5bbYour cards?
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 42.1%Call 31.8%Raise 5/7.5bb 26.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 2.5bb in Heads-up · SB 0.5bb · 5% rake, cap 3bb at 100bb?

SB opens 2.5bb in Heads-up · SB 0.5bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 42.1%, calls 31.8% and raises 5/7.5bb 26.1%. Always call: 33, A6s, Q5s, Q2s-Q3s, J2s-J4s, T4s, T2s, 96s, 53s, A7o-A8o, A2o-A5o, K6o-K7o, T8o, 87o. Always raise 5/7.5bb: 88+, 55-66, ATs+, A8s, A2s-A5s, KTs+, K6s, QTs+, J9s+, T7s, 98s, 86s+, 76s, 64s+, 54s, ATo+, KQo. Mixed: 77, 44, 22, A9s, A7s, K7s-K9s, K2s-K5s, Q6s-Q9s, Q4s, J5s-J8s, T8s+, T5s-T6s, T3s, 97s, 92s-95s, 84s-85s, 73s-75s, 63s, 52s, 43s, A9o, A6o, K8o-KJo, K5o, Q7o+, J8o+, T9o, T7o, 97o+, 76o, 65o.

Always fold
82s-83s, 72s, 62s, 42s, 32s, K2o-K4o, Q2o-Q6o, J2o-J7o, T2o-T6o, 92o-96o, 82o-86o, 72o-75o, 62o-64o, 52o+, 42o+, 32o
Always call
33, A6s, Q5s, Q2s-Q3s, J2s-J4s, T4s, T2s, 96s, 53s, A7o-A8o, A2o-A5o, K6o-K7o, T8o, 87o
Always raise 5/7.5bb
88+, 55-66, ATs+, A8s, A2s-A5s, KTs+, K6s, QTs+, J9s+, T7s, 98s, 86s+, 76s, 64s+, 54s, ATo+, KQo
Mixed
77, 44, 22, A9s, A7s, K7s-K9s, K2s-K5s, Q6s-Q9s, Q4s, J5s-J8s, T8s+, T5s-T6s, T3s, 97s, 92s-95s, 84s-85s, 73s-75s, 63s, 52s, 43s, A9o, A6o, K8o-KJo, K5o, Q7o+, J8o+, T9o, T7o, 97o+, 76o, 65o
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.