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

BB vs BTN call

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 2.5bb, 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
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 75.2%Call 12.2%Raise 5/7.5bb 12.7%
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 2.5bb, BTN calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO opens 2.5bb, BTN calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 75.2%, calls 12.2% and raises 5/7.5bb 12.7%. Always call: 77, 22-44, A6s-A7s, A4s, K4s-K5s. Always raise 5/7.5bb: TT+, 88, ATs+, KJs+, QTs+, J9s, AQo+. Mixed: 99, 55-66, A8s-A9s, A5s, A2s-A3s, K6s-KTs, K2s-K3s, Q7s-Q9s, Q2s, JTs, J8s, T7s+, 97s+, 86s+, 75s+, 63s+, 53s+, 43s, ATo-AJo, KTo+, QTo+, JTo.

Always fold
Q3s-Q6s, J2s-J7s, T2s-T6s, 92s-96s, 82s-85s, 72s-74s, 62s, 52s, 42s, 32s, A2o-A9o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
77, 22-44, A6s-A7s, A4s, K4s-K5s
Always raise 5/7.5bb
TT+, 88, ATs+, KJs+, QTs+, J9s, AQo+
Mixed
99, 55-66, A8s-A9s, A5s, A2s-A3s, K6s-KTs, K2s-K3s, Q7s-Q9s, Q2s, JTs, J8s, T7s+, 97s+, 86s+, 75s+, 63s+, 53s+, 43s, ATo-AJo, KTo+, QTo+, JTo
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.

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.