PokerSolver/4-max · 100bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB open 3bb

BB vs SB open 3bb

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

4-max · 100bb · SB 0.5bb · 5% rake, cap 3bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 4bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 46.4%Call 35.9%Raise 6/9bb 17.7%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 3bb in 4-max · SB 0.5bb · 5% rake, cap 3bb at 100bb?

SB opens 3bb in 4-max · SB 0.5bb · 5% rake, cap 3bb, 100bb: the big blind (BB) folds 46.4%, calls 35.9% and raises 6/9bb 17.7%. Always call: 99, 22-44, A6s-ATs, K2s-K8s, Q2s-Q8s, J6s-J8s, J4s, T6s-T7s, 96s-97s, 85s, 74s-75s, 63s-64s, 52s, 42s+, A7o-AJo, A5o, KTo-KJo, Q9o+, JTo, T9o, 98o, 76o. Always raise 6/9bb: TT+, AJs+, KQs, JTs, T9s, 65s, 54s, AQo+, A2o-A3o, K7o. Mixed: 55-88, A2s-A5s, K9s-KJs, Q9s+, J9s, J5s, J2s-J3s, T8s, T2s-T5s, 98s, 95s, 86s+, 76s, 53s, A6o, A4o, KQo, K8o-K9o, K5o-K6o, Q8o, J8o-J9o, T7o-T8o, 87o, 65o.

Always fold: 92s-94s, 82s-84s, 72s-73s, 62s, 32s, K2o-K4o, Q2o-Q7o, J2o-J7o, T2o-T6o, 92o-97o, 82o-86o, 72o-75o, 62o-64o, 52o+, 42o+, 32o
Always call: 99, 22-44, A6s-ATs, K2s-K8s, Q2s-Q8s, J6s-J8s, J4s, T6s-T7s, 96s-97s, 85s, 74s-75s, 63s-64s, 52s, 42s+, A7o-AJo, A5o, KTo-KJo, Q9o+, JTo, T9o, 98o, 76o
Always raise 6/9bb: TT+, AJs+, KQs, JTs, T9s, 65s, 54s, AQo+, A2o-A3o, K7o
Mixed: 55-88, A2s-A5s, K9s-KJs, Q9s+, J9s, J5s, J2s-J3s, T8s, T2s-T5s, 98s, 95s, 86s+, 76s, 53s, A6o, A4o, KQo, K8o-K9o, K5o-K6o, Q8o, J8o-J9o, T7o-T8o, 87o, 65o

Settings: 4-max · 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 20.31). 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 NL50 (rake cap 6bb there, 3bb here).

Close: GGPoker regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: GGPoker regular cash NL200 (rake cap 2.25bb there, 3bb here).

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 6bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 4.8bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL100 (only its tables without antes).

Close: CoinPoker cash NL200 (rake cap 1.8bb 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 NL50 (rake cap 6bb there, 3bb here).

Close: Natural8 regular cash NL100 (rake cap 3.75bb there, 3bb here).

Close: Natural8 regular cash NL200 (rake cap 2.25bb there, 3bb here).

Close: ACR Poker cash NL50 (rake cap 4bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (rake cap 2bb 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 NL200 at $4.50 (2.25bb) with 4 players dealt in and $3 (1.5bb) with 3. A solve with GG's caps is queued.