PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB call

BB vs SB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · 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
4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 6.64bbYour cards?
1bb
2.5bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 46.7%Call 36.5%Raise 5/7.5bb 16.8%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN opens 2.5bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 46.7%, calls 36.5% and raises 5/7.5bb 16.8%. Always call: 22-33, A3s, K8s, K2s-K3s, Q2s-Q7s, J6s-J7s, J4s, 95s, 75s, 62s-63s, 52s-53s, 42s, A4o-A9o, K9o-KTo, Q9o-QTo, 98o, 87o, 75o+, 65o, 53o+. Always raise 5/7.5bb: 77+, 55, A9s+, A4s-A5s, KJs+, QTs+, JTs, T8s+, AQo+. Mixed: 66, 44, A6s-A8s, A2s, K9s-KTs, K4s-K7s, Q8s-Q9s, J8s-J9s, J5s, J2s-J3s, T2s-T7s, 96s+, 94s, 92s, 84s+, 76s, 73s-74s, 64s+, 54s, 43s, 32s, ATo-AJo, A3o, KJo+, K7o, QJo, J9o+, T8o+, 97o, 86o, 64o.

Always fold
93s, 82s-83s, 72s, A2o, K8o, K2o-K6o, Q2o-Q8o, J2o-J8o, T2o-T7o, 92o-96o, 82o-85o, 72o-74o, 62o-63o, 52o, 42o+, 32o
Always call
22-33, A3s, K8s, K2s-K3s, Q2s-Q7s, J6s-J7s, J4s, 95s, 75s, 62s-63s, 52s-53s, 42s, A4o-A9o, K9o-KTo, Q9o-QTo, 98o, 87o, 75o+, 65o, 53o+
Always raise 5/7.5bb
77+, 55, A9s+, A4s-A5s, KJs+, QTs+, JTs, T8s+, AQo+
Mixed
66, 44, A6s-A8s, A2s, K9s-KTs, K4s-K7s, Q8s-Q9s, J8s-J9s, J5s, J2s-J3s, T2s-T7s, 96s+, 94s, 92s, 84s+, 76s, 73s-74s, 64s+, 54s, 43s, 32s, ATo-AJo, A3o, KJo+, K7o, QJo, J9o+, T8o+, 97o, 86o, 64o
Settings: 4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.