PokerSolver
PokerSolver/6-max · 200bb · SB 0.5bb · 5% rake, cap 3bb/BB vs SB iso raise 2.5bb

BB vs SB iso raise 2.5bb

6-max · SB 0.5bb · 5% rake, cap 3bb (blinds 0.5/1bb) · 200bb · CO limps, SB isolates to 2.5bb · Big blind to act

6-max · 200bb · SB 0.5bb · 5% rake, cap 3bbChange game
Stacks (bb), if they differ
Pot 4.5bbYour cards?
1bb
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 93.5%Call 3.7%Raise 5/7.5bb 2.9%
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, SB isolates to 2.5bb in 6-max · SB 0.5bb · 5% rake, cap 3bb at 200bb?

CO limps, SB isolates to 2.5bb in 6-max · SB 0.5bb · 5% rake, cap 3bb, 200bb: the big blind (BB) folds 93.5%, calls 3.7% and raises 5/7.5bb 2.9%. Always call: QQ. Always raise 5/7.5bb: AA. Mixed: KK, 77-JJ, 44, 22, A9s+, A6s-A7s, A2s-A4s, KTs+, K7s, K4s, QTs+, Q8s, J9s, T6s-T7s, 98s, 87s, 75s, 64s, 43s, AKo.

Always fold
55-66, 33, A8s, A5s, K8s-K9s, K5s-K6s, K2s-K3s, Q9s, Q2s-Q7s, JTs, J2s-J8s, T8s+, T2s-T5s, 92s-97s, 82s-86s, 76s, 72s-74s, 65s, 62s-63s, 52s+, 42s, 32s, A2o-AQo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
QQ
Always raise 5/7.5bb
AA
Mixed
KK, 77-JJ, 44, 22, A9s+, A6s-A7s, A2s-A4s, KTs+, K7s, K4s, QTs+, Q8s, J9s, T6s-T7s, 98s, 87s, 75s, 64s, 43s, AKo
Settings: 6-max · 200bb · SB 0.5bb · 5% rake, cap 3bb (small blind 0.5bb, big blind 1bb, 200bb stacks, 5% rake capped at 3bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC) (HRC CI 24.64). 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 NL100 (rake cap 5bb there, 3bb here).

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 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 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 NL100 (rake cap 5bb there, 3bb here).

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).