PokerSolver/6-max · 20bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB call

BB vs SB call

6-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 20bb · CO limps, BTN isolates to 2.5bb, SB calls · Big blind to act

6-max · 20bb · SB 0.5bb · 5% rake, cap 3bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differUTGHJCOBTNSBBB

Pot 7bbYour cards?

1bb

2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 68.4%Call 17.1%Raise 5/7.5bb 14.5%

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

What is the GTO play for the big blind (BB) when CO limps, BTN isolates to 2.5bb, SB calls in 6-max · SB 0.5bb · 5% rake, cap 3bb at 20bb?

CO limps, BTN isolates to 2.5bb, SB calls in 6-max · SB 0.5bb · 5% rake, cap 3bb, 20bb: the big blind (BB) folds 68.4%, calls 17.1% and raises 5/7.5bb 14.5%. Always call: AKo. Always raise 5/7.5bb: QQ-KK, 77, AJs, 76s. Mixed: AA, 88-JJ, 22-66, AQs+, A2s-ATs, K2s+, Q7s-QTs, Q2s-Q4s, J6s+, J4s, J2s, T8s+, T2s-T5s, 94s-97s, 82s+, 72s-75s, 62s+, 52s+, 42s+, A9o-AQo, A2o-A6o, K7o-KJo, K2o-K5o, QJo, Q6o-Q9o, Q2o-Q3o, J8o-J9o, J5o-J6o, T7o-T8o, T5o, 98o, 87o, 72o+, 63o, 52o+, 43o.

Always fold: QJs, Q5s-Q6s, J5s, J3s, T6s-T7s, 98s, 92s-93s, 32s, A7o-A8o, KQo, K6o, QTo, Q4o-Q5o, JTo, J7o, J2o-J4o, T9o, T6o, T2o-T4o, 92o-97o, 82o-86o, 64o+, 62o, 42o, 32o
Always call: AKo
Always raise 5/7.5bb: QQ-KK, 77, AJs, 76s
Mixed: AA, 88-JJ, 22-66, AQs+, A2s-ATs, K2s+, Q7s-QTs, Q2s-Q4s, J6s+, J4s, J2s, T8s+, T2s-T5s, 94s-97s, 82s+, 72s-75s, 62s+, 52s+, 42s+, A9o-AQo, A2o-A6o, K7o-KJo, K2o-K5o, QJo, Q6o-Q9o, Q2o-Q3o, J8o-J9o, J5o-J6o, T7o-T8o, T5o, 98o, 87o, 72o+, 63o, 52o+, 43o

Settings: 6-max · 20bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 20bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 24.03). 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: GGPoker Rush & Cash NL2, NL10, NL50, NL100, NL200; GGPoker regular cash NL200; Natural8 Rush & Cash NL2, NL10, NL50, NL100, NL200; Natural8 regular cash NL200.

Close: GGPoker regular cash NL2, NL10 (rake cap 10bb there, 3bb here).

Close: GGPoker regular cash NL50 (rake cap 8bb there, 3bb here).

Close: GGPoker regular cash NL100 (rake cap 5bb there, 3bb here).

Close: PokerStars Zoom NL10 (rake cap 15bb there, 3bb here; 4.5% rake there, 5% here; no rake when no flop is dealt there).

Close: PokerStars Zoom NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars Zoom NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL10 (rake cap 15bb there, 3bb here; 4.25% rake there, 5% here; no rake when no flop is dealt there).

Close: PokerStars cash NL50 (rake cap 4bb there, 3bb here; no rake when no flop is dealt there).

Close: PokerStars cash NL100 (rake cap 2.5bb there, 3bb here; no rake when no flop is dealt there).

Close: CoinPoker cash NL2, NL10 (rake cap 10bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL50 (rake cap 8bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL100 (rake cap 5bb there, 3bb here; only its tables without antes).

Close: CoinPoker cash NL200 (only its tables without antes).

Close: WPT Global cash NL10, NL20 (rake cap 6bb there, 3bb here; 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 4bb there, 3bb here; 4% rake there, 5% here; no rake when no flop is dealt there; only its tables without antes).

Close: WPT Global cash NL400, NL600, NL1000 (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 10bb there, 3bb here).

Close: Natural8 regular cash NL50 (rake cap 8bb there, 3bb here).

Close: Natural8 regular cash NL100 (rake cap 5bb there, 3bb here).

Close: ACR Poker cash NL2 (rake cap 150bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL10 (rake cap 30bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL50 (rake cap 6bb there, 3bb here; its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL100 (its page does not say whether pots that end before the flop are raked).

Close: ACR Poker cash NL200 (rake cap 1.5bb 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); natural8.com/en/poker/rush-and-cash (fetched 2026-10-31; caps $0.06 to $6, 3bb at every stake); the same GGNetwork pools as GGPoker, whose preflop rake we confirmed on GG exports; natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); 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); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).