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

BB vs CO call

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · HJ opens 2.5bb, CO calls · Big blind to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.3bbYour cards?
1bb
2.5bb
2.5bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 78.5%Call 12.5%Raise 5/7.5bb 9.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when HJ opens 2.5bb, CO calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

HJ opens 2.5bb, CO calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 78.5%, calls 12.5% and raises 5/7.5bb 9.1%. Always call: TT, 22-33, A7s, A4s, A2s, K6s. Always raise 5/7.5bb: JJ+, AJs+, KQs, QJs, AKo. Mixed: 44-99, A8s-ATs, A5s-A6s, A3s, K7s-KJs, K5s, K2s-K3s, Q9s-QTs, Q7s, J8s+, T8s+, 97s+, 85s+, 75s+, 63s+, 53s+, AJo-AQo, KJo+, QJo.

Always fold
K4s, Q8s, Q2s-Q6s, J2s-J7s, T2s-T7s, 92s-96s, 82s-84s, 72s-74s, 62s, 52s, 42s+, 32s, A2o-ATo, K2o-KTo, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
TT, 22-33, A7s, A4s, A2s, K6s
Always raise 5/7.5bb
JJ+, AJs+, KQs, QJs, AKo
Mixed
44-99, A8s-ATs, A5s-A6s, A3s, K7s-KJs, K5s, K2s-K3s, Q9s-QTs, Q7s, J8s+, T8s+, 97s+, 85s+, 75s+, 63s+, 53s+, AJo-AQo, KJo+, QJo
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.