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

BB vs SB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO limps, BTN isolates to 2bb, SB 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
Stacks (bb), if they differ
Pot 6.64bbYour cards?
1bb
1bb
2bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 84.3%Call 5.2%Raise 4/6bb 10.5%
Tap a hand, or type one above, to see its exact mix.

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

CO limps, BTN isolates to 2bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the big blind (BB) folds 84.3%, calls 5.2% and raises 4/6bb 10.5%. Always call: 88, KTs. Always raise 4/6bb: TT+, AKs, AKo. Mixed: 99, 44-77, 22, A5s-AQs, A2s, KJs+, K8s-K9s, K4s-K6s, QTs+, Q6s-Q7s, J9s+, T6s+, 98s, 96s, 86s+, 75s+, 65s, ATo-AQo, A7o, KJo+, QTo+, JTo, T8o.

Always fold
33, A3s-A4s, K7s, K2s-K3s, Q8s-Q9s, Q2s-Q5s, J2s-J8s, T2s-T5s, 97s, 92s-95s, 82s-85s, 72s-74s, 62s-64s, 52s+, 42s+, 32s, A8o-A9o, A2o-A6o, K2o-KTo, Q2o-Q9o, J2o-J9o, T9o, T2o-T7o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
88, KTs
Always raise 4/6bb
TT+, AKs, AKo
Mixed
99, 44-77, 22, A5s-AQs, A2s, KJs+, K8s-K9s, K4s-K6s, QTs+, Q6s-Q7s, J9s+, T6s+, 98s, 96s, 86s+, 75s+, 65s, ATo-AQo, A7o, KJo+, QTo+, JTo, T8o
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.