Updated 2026-07-22 · 8 decks · S17 · DAS · methodology
9,9 (pair of 9s) vs dealer 9: the verdict
The verdict is split. Two hands of 9 beat one 18 against a dealer 9 — split them.
The numbers
| Action | Win | Push | Lose | EV per $1 |
|---|---|---|---|---|
| Split* | 38.8% | 16.8% | 44.4% | −0.094 |
| Stand | 34.8% | 12.0% | 53.2% | −0.183 |
| Hit | 17.1% | 4.1% | 78.8% | −0.617 |
| Double | 17.1% | 4.1% | 78.8% | −1.233 |
* win/push/lose shown per split hand; EV covers both hands per one initial bet.
Why split is correct
Played as a single total, this hand is weak against a 9. Split, each new hand starting from 9 wins 38.8% — enough that two of them (EV −0.094 across both) beat the best single-hand line at −0.183.
For context, a dealer 9 finishes on 17–20 about 71.1% of the time, on 21 6.1%, and busts 22.8%. Those dealer outcomes are the same no matter what you hold — the whole game is choosing the action whose distribution fits them best.
What the mistake costs
Choosing stand instead of split costs about $224 per 100 such hands at $25 a hand (−0.090 EV per dollar). The genuinely expensive error here is double: −1.139 per dollar, or roughly $2848 per 100 hands at the same stakes.
Does the rule set change it?
No — split holds across every common configuration: Vegas Strip, Atlantic City with late surrender, H17 games and European no-hole-card tables all agree here.
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9,9 against other dealer cards:
Other key hands vs a dealer 9: