PokerSolver
PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN open 2bb

BB vs BTN open 2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN opens 2bb · Big blind to act

4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 4.14bbYour cards?
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 22.8%Call 61%Raise 4/6bb 16.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

BTN opens 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the big blind (BB) folds 22.8%, calls 61% and raises 4/6bb 16.2%. Always call: 22-44, K2s-K4s, Q8s, Q2s-Q6s, J8s, J2s-J5s, T6s, T2s-T4s, 92s-95s, 82s-85s, 72s-74s, 62s+, 52s, 42s+, 32s, A2o-A9o, K2o-KTo, Q4o+, J7o-J9o, T6o+, 96o+, 86o+, 75o+, 64o+, 54o. Always raise 4/6bb: 99+, 77, ATs+, KTs+, QJs, Q9s, J9s+, T8s, 98s, 76s, 53s, AQo+, KQo. Mixed: 88, 55-66, A2s-A9s, K5s-K9s, QTs, Q7s, J6s-J7s, T9s, T7s, T5s, 96s-97s, 86s+, 75s, 54s, ATo-AJo, KJo, Q2o-Q3o, JTo, J5o-J6o, 85o, 53o.

Always fold
J2o-J4o, T2o-T5o, 92o-95o, 82o-84o, 72o-74o, 62o-63o, 52o, 42o+, 32o
Always call
22-44, K2s-K4s, Q8s, Q2s-Q6s, J8s, J2s-J5s, T6s, T2s-T4s, 92s-95s, 82s-85s, 72s-74s, 62s+, 52s, 42s+, 32s, A2o-A9o, K2o-KTo, Q4o+, J7o-J9o, T6o+, 96o+, 86o+, 75o+, 64o+, 54o
Always raise 4/6bb
99+, 77, ATs+, KTs+, QJs, Q9s, J9s+, T8s, 98s, 76s, 53s, AQo+, KQo
Mixed
88, 55-66, A2s-A9s, K5s-K9s, QTs, Q7s, J6s-J7s, T9s, T7s, T5s, 96s-97s, 86s+, 75s, 54s, ATo-AJo, KJo, Q2o-Q3o, JTo, J5o-J6o, 85o, 53o
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.