SB vs CO all-in
5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO opens 3bb, SB 3-bets to 9bb, CO goes all-in · Small blind to act
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 110.64bbYour cards?
9bb
1bb
99.84bb
Tap your two cards.
Small blind's range
302 of 1,326 combos get hereFold 83.3%Call 16.8%
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, SB 3-bets to 9bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?
CO opens 3bb, SB 3-bets to 9bb, CO goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 83.3% and calls 16.8%. Always call: TT+, AKs, AKo. Mixed: 88-99, 55.
- Always fold
- 66-77, ATs-AQs, A2s-A8s, K5s+, Q9s+, J8s+, T8s+, 87s, 76s, 65s, ATo-AQo, KJo+, QJo
- Always call
- TT+, AKs, AKo
- Mixed
- 88-99, 55
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.