PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB open 3bb

BB vs SB open 3bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB opens 3bb · Big blind to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.8bbYour cards?
1bb
3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 30.8%Call 52.9%Raise 6/9bb 16.4%
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 3bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

SB opens 3bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 30.8%, calls 52.9% and raises 6/9bb 16.4%. Always call: 77-99, 22-44, A6s-A9s, K2s-K9s, Q2s-QTs, J2s-J9s, T2s-T8s, 95s-97s, 92s-93s, 84s-85s, 73s-75s, 63s-64s, 52s-53s, 42s+, 32s, A7o-AJo, A4o-A5o, K6o+, Q7o+, J9o+, T8o+, 97o+, 87o, 76o, 65o, 54o. Always raise 6/9bb: TT+, AJs+, A4s-A5s, KJs+, AQo+, A2o, K4o, J5o, T6o. Mixed: 55-66, ATs, A2s-A3s, KTs, QJs, JTs, T9s, 98s, 94s, 86s+, 83s, 76s, 65s, 62s, 54s, A6o, A3o, K5o, K2o-K3o, Q4o-Q6o, J7o-J8o, J4o, T7o, 96o, 86o.

Always fold
82s, 72s, Q2o-Q3o, J6o, J2o-J3o, T2o-T5o, 92o-95o, 82o-85o, 72o-75o, 62o-64o, 52o-53o, 42o+, 32o
Always call
77-99, 22-44, A6s-A9s, K2s-K9s, Q2s-QTs, J2s-J9s, T2s-T8s, 95s-97s, 92s-93s, 84s-85s, 73s-75s, 63s-64s, 52s-53s, 42s+, 32s, A7o-AJo, A4o-A5o, K6o+, Q7o+, J9o+, T8o+, 97o+, 87o, 76o, 65o, 54o
Always raise 6/9bb
TT+, AJs+, A4s-A5s, KJs+, AQo+, A2o, K4o, J5o, T6o
Mixed
55-66, ATs, A2s-A3s, KTs, QJs, JTs, T9s, 98s, 94s, 86s+, 83s, 76s, 65s, 62s, 54s, A6o, A3o, K5o, K2o-K3o, Q4o-Q6o, J7o-J8o, J4o, T7o, 96o, 86o
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.