PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs CO open 2.5bb

SB vs CO open 2.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 2.5bb · Small 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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 4.8bbYour cards?

0.5bb

1bb

2.5bb

Tap your two cards.

Small blind's range

1,326 of 1,326 combos get here

Fold 82%Call 6%Raise 5/7.5bb 12%

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 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO opens 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 82%, calls 6% and raises 5/7.5bb 12%. Always call: 44, A9s, Q9s. Always raise 5/7.5bb: JJ+, 88, AJs+, A8s, A5s, KTs+, JTs, AKo. Mixed: 99-TT, 55-77, 33, ATs, A6s-A7s, A2s-A4s, K6s-K9s, QTs+, J9s, T8s+, 76s, 65s, ATo-AQo, KJo+, QJo.

Always fold: 22, K2s-K5s, Q2s-Q8s, J2s-J8s, T2s-T7s, 92s+, 82s+, 72s-75s, 62s-64s, 52s+, 42s+, 32s, A2o-A9o, K2o-KTo, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 44, A9s, Q9s
Always raise 5/7.5bb: JJ+, 88, AJs+, A8s, A5s, KTs+, JTs, AKo
Mixed: 99-TT, 55-77, 33, ATs, A6s-A7s, A2s-A4s, K6s-K9s, QTs+, J9s, T8s+, 76s, 65s, ATo-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.

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.