PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB open 2bb

BB vs SB open 2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB opens 2bb · Big blind to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 3.8bbYour cards?
1bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 7.1%Call 69.6%Raise 4/6bb 23.3%
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 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

SB opens 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 7.1%, calls 69.6% and raises 4/6bb 23.3%. Always call: K7s-K8s, K2s-K3s, Q2s-Q8s, J7s, J2s-J5s, T5s, T2s-T3s, 97s, 95s, 92s-93s, 84s, 82s, 74s-75s, 72s, 62s, 52s-53s, 32s, A7o-ATo, A3o-A5o, K3o-KTo, Q7o+, Q4o, JTo, J4o, J2o, T7o+, T2o, 98o, 87o, 85o, 76o, 74o, 63o+, 52o+, 43o. Always raise 4/6bb: TT+, 88, 66, AJs+, A3s-A5s, KQs, QJs, JTs, AQo+. Mixed: 99, 77, 22-55, A6s-ATs, A2s, K9s-KJs, K4s-K6s, Q9s-QTs, J8s-J9s, J6s, T6s+, T4s, 98s, 96s, 94s, 85s+, 83s, 76s, 73s, 63s+, 54s, 42s+, AJo, A6o, A2o, KJo+, K2o, Q5o-Q6o, Q2o-Q3o, J5o-J9o, J3o, T3o-T6o, 92o-97o, 86o, 84o, 75o, 42o, 32o.

Always fold
82o-83o, 72o-73o, 62o
Always call
K7s-K8s, K2s-K3s, Q2s-Q8s, J7s, J2s-J5s, T5s, T2s-T3s, 97s, 95s, 92s-93s, 84s, 82s, 74s-75s, 72s, 62s, 52s-53s, 32s, A7o-ATo, A3o-A5o, K3o-KTo, Q7o+, Q4o, JTo, J4o, J2o, T7o+, T2o, 98o, 87o, 85o, 76o, 74o, 63o+, 52o+, 43o
Always raise 4/6bb
TT+, 88, 66, AJs+, A3s-A5s, KQs, QJs, JTs, AQo+
Mixed
99, 77, 22-55, A6s-ATs, A2s, K9s-KJs, K4s-K6s, Q9s-QTs, J8s-J9s, J6s, T6s+, T4s, 98s, 96s, 94s, 85s+, 83s, 76s, 73s, 63s+, 54s, 42s+, AJo, A6o, A2o, KJo+, K2o, Q5o-Q6o, Q2o-Q3o, J5o-J9o, J3o, T3o-T6o, 92o-97o, 86o, 84o, 75o, 42o, 32o
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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.