PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN call

SB vs BTN call

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 2bb, BTN calls · Small blind to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 6.3bbYour cards?
0.5bb
1bb
2bb
2bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here
Fold 86.2%Call 3.2%Raise 4/6bb 10.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO opens 2bb, BTN calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 2bb, BTN calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the small blind (SB) folds 86.2%, calls 3.2% and raises 4/6bb 10.5%. Always raise 4/6bb: TT+, AQs+, QJs, AQo+. Mixed: 22-99, A2s-AJs, KTs+, K8s, K5s, Q9s-QTs, J9s+, T8s, 97s+, 87s, 54s, ATo-AJo, KQo.

Always fold
K9s, K6s-K7s, K2s-K4s, Q2s-Q8s, J2s-J8s, T9s, T2s-T7s, 92s-96s, 82s-86s, 72s+, 62s+, 52s-53s, 42s+, 32s, A2o-A9o, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 4/6bb
TT+, AQs+, QJs, AQo+
Mixed
22-99, A2s-AJs, KTs+, K8s, K5s, Q9s-QTs, J9s+, T8s, 97s+, 87s, 54s, ATo-AJo, KQo
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.