PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB open 2.5bb

BB vs SB open 2.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB opens 2.5bb · Big blind to act

6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.46bbYour cards?
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 19%Call 63.8%Raise 5/7.5bb 17.2%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

SB opens 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 19%, calls 63.8% and raises 5/7.5bb 17.2%. Always call: 77-88, 22-55, A7s-A9s, A5s, K7s-K9s, K5s, K2s-K3s, Q2s-Q8s, J2s-J9s, T5s-T7s, T2s, 94s-96s, 85s, 82s, 72s+, 64s, 62s, 52s+, 42s+, 32s, A7o-ATo, A4o-A5o, KTo+, K6o-K8o, Q7o+, J9o+, T8o+, 98o, 86o+, 75o+, 65o, 54o. Always raise 5/7.5bb: TT+, ATs+, A4s, AQo+. Mixed: 99, 66, A6s, A2s-A3s, KTs+, K6s, K4s, Q9s+, JTs, T8s+, T3s-T4s, 97s+, 92s-93s, 86s+, 83s-84s, 65s, 63s, AJo, A6o, A2o-A3o, K9o, K2o-K5o, Q2o-Q6o, J2o-J8o, T4o-T7o, 96o-97o, 85o, 64o, 53o, 43o.

Always fold
T2o-T3o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o, 42o, 32o
Always call
77-88, 22-55, A7s-A9s, A5s, K7s-K9s, K5s, K2s-K3s, Q2s-Q8s, J2s-J9s, T5s-T7s, T2s, 94s-96s, 85s, 82s, 72s+, 64s, 62s, 52s+, 42s+, 32s, A7o-ATo, A4o-A5o, KTo+, K6o-K8o, Q7o+, J9o+, T8o+, 98o, 86o+, 75o+, 65o, 54o
Always raise 5/7.5bb
TT+, ATs+, A4s, AQo+
Mixed
99, 66, A6s, A2s-A3s, KTs+, K6s, K4s, Q9s+, JTs, T8s+, T3s-T4s, 97s+, 92s-93s, 86s+, 83s-84s, 65s, 63s, AJo, A6o, A2o-A3o, K9o, K2o-K5o, Q2o-Q6o, J2o-J8o, T4o-T7o, 96o-97o, 85o, 64o, 53o, 43o
Settings: 6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). 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: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.