PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB open 2.5bb

BB vs SB open 2.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · SB opens 2.5bb · 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 · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 4.14bbYour cards?
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 26.4%Call 47.1%Raise 5/7.5bb 26.5%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

SB opens 2.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 26.4%, calls 47.1% and raises 5/7.5bb 26.5%. Always call: Q7s, Q2s-Q4s, J2s-J7s, T6s, T4s, T2s, 94s-95s, 92s, 85s, 82s, 73s, 63s, 42s, A7o-A9o, K7o-K9o, K4o, Q8o, JTo, 97o+, 86o+, 75o+, 65o, 54o. Always raise 5/7.5bb: 88+, 55, ATs+, A4s-A5s, KTs+, QTs+, J8s+, T9s, 97s+, 65s, AQo+. Mixed: 66-77, 22-44, A6s-A9s, A2s-A3s, K2s-K9s, Q8s-Q9s, Q5s-Q6s, T7s-T8s, T5s, T3s, 96s, 93s, 86s+, 83s-84s, 74s+, 64s, 52s+, 43s, 32s, ATo-AJo, A2o-A6o, KTo+, K5o-K6o, K2o-K3o, Q9o+, Q4o-Q7o, J7o-J9o, J4o-J5o, T6o+, 96o, 64o, 53o.

Always fold
72s, 62s, Q2o-Q3o, J6o, J2o-J3o, T2o-T5o, 92o-95o, 82o-85o, 72o-74o, 62o-63o, 52o, 42o+, 32o
Always call
Q7s, Q2s-Q4s, J2s-J7s, T6s, T4s, T2s, 94s-95s, 92s, 85s, 82s, 73s, 63s, 42s, A7o-A9o, K7o-K9o, K4o, Q8o, JTo, 97o+, 86o+, 75o+, 65o, 54o
Always raise 5/7.5bb
88+, 55, ATs+, A4s-A5s, KTs+, QTs+, J8s+, T9s, 97s+, 65s, AQo+
Mixed
66-77, 22-44, A6s-A9s, A2s-A3s, K2s-K9s, Q8s-Q9s, Q5s-Q6s, T7s-T8s, T5s, T3s, 96s, 93s, 86s+, 83s-84s, 74s+, 64s, 52s+, 43s, 32s, ATo-AJo, A2o-A6o, KTo+, K5o-K6o, K2o-K3o, Q9o+, Q4o-Q7o, J7o-J9o, J4o-J5o, T6o+, 96o, 64o, 53o
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; 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.