PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN call

BB vs BTN call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 2bb, BTN calls · Big blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 6.14bbYour cards?

1bb

2bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 73.6%Call 15.2%Raise 4/6bb 11.2%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, BTN calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO opens 2bb, BTN calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 73.6%, calls 15.2% and raises 4/6bb 11.2%. Always call: 22-77, A6s, K4s, Q9s. Always raise 4/6bb: TT+, AKs, KQs, QTs, AKo. Mixed: 88-99, A7s-AQs, A2s-A5s, K5s-KJs, K2s, QJs, Q2s-Q8s, J6s+, J2s, T7s+, T5s, 98s, 93s-96s, 85s+, 82s, 76s, 73s-74s, 62s+, 53s+, 42s+, ATo-AQo, A7o, A5o, KJo+, QTo+, JTo, 97o, 87o, 65o, 53o.

Always fold: K3s, J3s-J5s, T6s, T2s-T4s, 97s, 92s, 83s-84s, 75s, 72s, 52s, 32s, A8o-A9o, A6o, A2o-A4o, K2o-KTo, Q2o-Q9o, J2o-J9o, T2o+, 98o, 92o-96o, 82o-86o, 72o+, 62o-64o, 54o, 52o, 42o+, 32o
Always call: 22-77, A6s, K4s, Q9s
Always raise 4/6bb: TT+, AKs, KQs, QTs, AKo
Mixed: 88-99, A7s-AQs, A2s-A5s, K5s-KJs, K2s, QJs, Q2s-Q8s, J6s+, J2s, T7s+, T5s, 98s, 93s-96s, 85s+, 82s, 76s, 73s-74s, 62s+, 53s+, 42s+, ATo-AQo, A7o, A5o, KJo+, QTo+, JTo, 97o, 87o, 65o, 53o

Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.