Updated 2026-07-22 · 8 decks · S17 · DAS · methodology
Soft 20 (A,9) vs dealer 6: the verdict
The verdict is stand. Against a dealer 6, soft 20 (a,9) does best by letting the dealer take the risk of busting.
The numbers
| Action | Win | Push | Lose | EV per $1 |
|---|---|---|---|---|
| Stand | 80.1% | 10.2% | 9.7% | +0.704 |
| Double | 61.0% | 6.8% | 32.2% | +0.576 |
| Hit | 61.0% | 6.8% | 32.2% | +0.288 |
Why stand is correct
A dealer showing 6 busts 42.3% of the time, and that bust chance is doing the work here: standing wins 80.1% of hands without ever risking your own bust. Drawing a card would improve the total sometimes, but the bust risk and the hands you’d ruin cost more than they gain.
For context, a dealer 6 finishes on 17–20 about 48.0% of the time, on 21 9.7%, and busts 42.3%. 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 double instead of stand costs about $321 per 100 such hands at $25 a hand (−0.128 EV per dollar). The genuinely expensive error here is hit: −0.416 per dollar, or roughly $1040 per 100 hands at the same stakes.
Does the rule set change it?
No — stand holds across every common configuration: Vegas Strip, Atlantic City with late surrender, H17 games and European no-hole-card tables all agree here.
🎁 Blackjack Welcome Bonus — 500% + 70 FS18+ · New players · First deposit · T&C apply · Play responsibly Get this verdict at the table in one tap.Free Telegram mini-app: instant verdicts, drill trainer and rule-aware charts — no install, opens right in chat.Related spots
soft 20 against other dealer cards:
Other key hands vs a dealer 6: