PokerSolver/4-max · 80bb · 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) · 80bb · CO opens 2bb, BTN calls · 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

4-max · 80bb · 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 75.4%Call 12.4%Raise 4/6bb 12.2%

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 80bb?

CO opens 2bb, BTN calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the big blind (BB) folds 75.4%, calls 12.4% and raises 4/6bb 12.2%. Always call: 77-88, 22-55, A8s, K3s, T7s. Always raise 4/6bb: 99+, AQs+, J8s, T9s, 76s, AQo+. Mixed: 66, A9s-AJs, A2s-A7s, K4s+, Q6s+, Q2s-Q3s, J9s+, J7s, J3s-J5s, T8s, T5s-T6s, 98s, 95s-96s, 87s, 84s-85s, 74s-75s, 64s+, 53s+, 43s, ATo-AJo, A5o, KJo+, QTo+, JTo, T9o, 75o, 64o+, 54o.

Always fold: K2s, Q4s-Q5s, J6s, J2s, T2s-T4s, 97s, 92s-94s, 86s, 82s-83s, 72s-73s, 62s-63s, 52s, 42s, 32s, A6o-A9o, A2o-A4o, K2o-KTo, Q2o-Q9o, J2o-J9o, T2o-T8o, 92o+, 82o+, 76o, 72o-74o, 62o-63o, 52o-53o, 42o+, 32o
Always call: 77-88, 22-55, A8s, K3s, T7s
Always raise 4/6bb: 99+, AQs+, J8s, T9s, 76s, AQo+
Mixed: 66, A9s-AJs, A2s-A7s, K4s+, Q6s+, Q2s-Q3s, J9s+, J7s, J3s-J5s, T8s, T5s-T6s, 98s, 95s-96s, 87s, 84s-85s, 74s-75s, 64s+, 53s+, 43s, ATo-AJo, A5o, KJo+, QTo+, JTo, T9o, 75o, 64o+, 54o

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.

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.