PokerSolver
PokerSolver/5-max · 100bb · 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) · 100bb · CO opens 2bb, 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
Tournament
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.8bbYour cards?
1bb
2bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 43.5%Call 45.4%Raise 4/6bb 11.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO opens 2bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 43.5%, calls 45.4% and raises 4/6bb 11.1%. Always call: 22-66, A6s-A7s, A2s-A4s, K8s, K2s-K6s, Q2s-Q5s, J8s, J6s, T7s, T4s, 92s, 76s, 74s, 53s, 42s+, A4o-ATo, KTo-KJo, QTo+, T9o, 97o, 86o+, 76o, 65o, 53o+. Always raise 4/6bb: TT+, AQs+, KQs, AQo+. Mixed: 77-99, A8s-AJs, A5s, K9s-KJs, K7s, Q6s+, J9s+, J7s, J2s-J5s, T8s+, T5s-T6s, T3s, 93s+, 84s+, 82s, 75s, 72s-73s, 62s+, 54s, 52s, 32s, AJo, A3o, KQo, K7o-K9o, K5o, Q9o, JTo, J8o, T7o-T8o, 98o, 96o, 75o, 63o-64o, 52o, 43o.

Always fold
T2s, 83s, A2o, K6o, K2o-K4o, Q2o-Q8o, J9o, J2o-J7o, T2o-T6o, 92o-95o, 82o-85o, 72o-74o, 62o, 42o, 32o
Always call
22-66, A6s-A7s, A2s-A4s, K8s, K2s-K6s, Q2s-Q5s, J8s, J6s, T7s, T4s, 92s, 76s, 74s, 53s, 42s+, A4o-ATo, KTo-KJo, QTo+, T9o, 97o, 86o+, 76o, 65o, 53o+
Always raise 4/6bb
TT+, AQs+, KQs, AQo+
Mixed
77-99, A8s-AJs, A5s, K9s-KJs, K7s, Q6s+, J9s+, J7s, J2s-J5s, T8s+, T5s-T6s, T3s, 93s+, 84s+, 82s, 75s, 72s-73s, 62s+, 54s, 52s, 32s, AJo, A3o, KQo, K7o-K9o, K5o, Q9o, JTo, J8o, T7o-T8o, 98o, 96o, 75o, 63o-64o, 52o, 43o
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.