SB vs CO open 3bb
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 3bb · Small blind to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 5.14bbYour cards?
0.5bb
1bb
3bb
Tap your two cards.
Small blind's range
1,326 of 1,326 combos get hereFold 85.1%Call 3.6%Raise 6/9bb 11.3%
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 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?
CO opens 3bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the small blind (SB) folds 85.1%, calls 3.6% and raises 6/9bb 11.3%. Always call: A9s-ATs. Always raise 6/9bb: JJ+, 66, AJs+, KQs, J9s+, AKo. Mixed: 77-TT, 44-55, A3s-A8s, K7s-KJs, Q9s+, T8s+, 76s, AJo-AQo, KJo+.
- Always fold
- 22-33, A2s, K2s-K6s, Q2s-Q8s, J2s-J8s, T2s-T7s, 92s+, 82s+, 72s-75s, 62s+, 52s+, 42s+, 32s, A2o-ATo, K2o-KTo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
- Always call
- A9s-ATs
- Always raise 6/9bb
- JJ+, 66, AJs+, KQs, J9s+, AKo
- Mixed
- 77-TT, 44-55, A3s-A8s, K7s-KJs, Q9s+, T8s+, 76s, AJo-AQo, KJo+
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.