PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB open 2.5bb

BB vs SB open 2.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (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
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.3bbYour cards?
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 19.7%Call 61.1%Raise 5/7.5bb 19.2%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

SB opens 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 19.7%, calls 61.1% and raises 5/7.5bb 19.2%. Always call: 22-33, A8s, A6s, A2s, K6s-K8s, K4s, K2s, Q2s-Q8s, J2s-J8s, T6s-T7s, T2s-T4s, 94s-97s, 83s-85s, 72s-75s, 62s-63s, 52s-53s, 42s+, 32s, A5o-ATo, K6o-KJo, Q7o+, JTo, T8o, 98o, 96o, 87o, 75o+, 65o, 53o. Always raise 5/7.5bb: TT+, AJs+, A5s, A3s, KJs+, AQo+. Mixed: 44-99, A9s-ATs, A7s, A4s, K9s-KTs, K5s, K3s, Q9s+, J9s+, T8s+, T5s, 98s, 92s-93s, 86s+, 82s, 76s, 64s+, 54s, AJo, A2o-A4o, KQo, K2o-K5o, Q2o-Q6o, J3o-J9o, T9o, T4o-T7o, 97o, 85o-86o, 64o, 54o, 43o.

Always fold
J2o, T2o-T3o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o, 42o, 32o
Always call
22-33, A8s, A6s, A2s, K6s-K8s, K4s, K2s, Q2s-Q8s, J2s-J8s, T6s-T7s, T2s-T4s, 94s-97s, 83s-85s, 72s-75s, 62s-63s, 52s-53s, 42s+, 32s, A5o-ATo, K6o-KJo, Q7o+, JTo, T8o, 98o, 96o, 87o, 75o+, 65o, 53o
Always raise 5/7.5bb
TT+, AJs+, A5s, A3s, KJs+, AQo+
Mixed
44-99, A9s-ATs, A7s, A4s, K9s-KTs, K5s, K3s, Q9s+, J9s+, T8s+, T5s, 98s, 92s-93s, 86s+, 82s, 76s, 64s+, 54s, AJo, A2o-A4o, KQo, K2o-K5o, Q2o-Q6o, J3o-J9o, T9o, T4o-T7o, 97o, 85o-86o, 64o, 54o, 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.