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

BB vs SB call

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

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 6.8bbYour cards?
1bb
2.5bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 52.8%Call 31.7%Raise 5/7.5bb 15.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2.5bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

BTN opens 2.5bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 52.8%, calls 31.7% and raises 5/7.5bb 15.6%. Always call: 22-55, A3s, K3s-K5s, Q6s, Q2s-Q4s, J6s-J8s, 74s, 63s, 53s, 43s, A6o-A9o, K9o-KJo, Q9o-QTo, 54o. Always raise 5/7.5bb: 99+, ATs+, A5s, KJs+, QJs, T9s, AQo+, KQo. Mixed: 66-88, A6s-A9s, A4s, A2s, K6s-KTs, K2s, Q7s-QTs, Q5s, J9s+, J3s-J5s, T2s-T8s, 94s+, 85s+, 83s, 75s+, 73s, 64s+, 62s, 54s, 52s, 42s, 32s, ATo-AJo, A3o-A5o, QJo, J9o+, T8o+, 97o+, 87o, 75o+, 64o+.

Always fold
J2s, 92s-93s, 84s, 82s, 72s, A2o, K2o-K8o, Q2o-Q8o, J2o-J8o, T2o-T7o, 92o-96o, 82o-86o, 72o-74o, 62o-63o, 52o-53o, 42o+, 32o
Always call
22-55, A3s, K3s-K5s, Q6s, Q2s-Q4s, J6s-J8s, 74s, 63s, 53s, 43s, A6o-A9o, K9o-KJo, Q9o-QTo, 54o
Always raise 5/7.5bb
99+, ATs+, A5s, KJs+, QJs, T9s, AQo+, KQo
Mixed
66-88, A6s-A9s, A4s, A2s, K6s-KTs, K2s, Q7s-QTs, Q5s, J9s+, J3s-J5s, T2s-T8s, 94s+, 85s+, 83s, 75s+, 73s, 64s+, 62s, 54s, 52s, 42s, 32s, ATo-AJo, A3o-A5o, QJo, J9o+, T8o+, 97o+, 87o, 75o+, 64o+
Settings: 5-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 24.95). 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.

Rake sources for the games it fits: 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.