PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB open 2.5bb

BB vs SB open 2.5bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · 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
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 3.82bbYour cards?
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 35.8%Call 35.4%Raise 5/7.5bb 28.8%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB opens 2.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 35.8%, calls 35.4% and raises 5/7.5bb 28.8%. Always call: 33, K2s, Q6s, J6s, J2s-J4s, T2s-T4s, 94s, 92s, 83s-84s, 73s, 52s, 42s, A6o-A7o, A2o-A4o, K4o-K8o, Q7o-Q8o, J8o-J9o, 87o, 65o. Always raise 5/7.5bb: 55+, A8s+, A2s-A5s, KTs+, Q8s+, J7s+, T8s+, 96s+, 85s+, 76s, 64s+, 53s+, A9o+, KQo. Mixed: 44, 22, A6s-A7s, K3s-K9s, Q7s, Q2s-Q5s, J5s, T5s-T7s, 95s, 93s, 74s-75s, 62s-63s, 43s, A8o, A5o, K9o-KJo, Q9o+, Q5o-Q6o, JTo, J7o, T7o+, 97o+, 86o, 76o, 54o.

Always fold
82s, 72s, 32s, K2o-K3o, Q2o-Q4o, J2o-J6o, T2o-T6o, 92o-96o, 82o-85o, 72o-75o, 62o-64o, 52o-53o, 42o+, 32o
Always call
33, K2s, Q6s, J6s, J2s-J4s, T2s-T4s, 94s, 92s, 83s-84s, 73s, 52s, 42s, A6o-A7o, A2o-A4o, K4o-K8o, Q7o-Q8o, J8o-J9o, 87o, 65o
Always raise 5/7.5bb
55+, A8s+, A2s-A5s, KTs+, Q8s+, J7s+, T8s+, 96s+, 85s+, 76s, 64s+, 53s+, A9o+, KQo
Mixed
44, 22, A6s-A7s, K3s-K9s, Q7s, Q2s-Q5s, J5s, T5s-T7s, 95s, 93s, 74s-75s, 62s-63s, 43s, A8o, A5o, K9o-KJo, Q9o+, Q5o-Q6o, JTo, J7o, T7o+, 97o+, 86o, 76o, 54o
Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.