Updated 2026-07-30 · 8 decks · S17 · DAS · methodology

Soft 19 (A,8) vs dealer Ace: the verdict

Q: Hit or stand on soft 19 against an ace?

Basic strategy says Stand. A genuine coin-flip — the gap is under half a cent per $1. Your chance of winning with the best play is about 54.4% (push 18.9%). Full EV math for every action is in the table above.

STAND

Basic strategy says stand. Against a dealer Ace, soft 19 (a,8) does best by letting the dealer take the risk of busting.

The numbers

Action	Win	Push	Lose	EV per $1
Stand	54.4%	18.9%	26.7%	+0.278
Hit	42.9%	13.6%	43.5%	−0.006
Double	39.9%	10.8%	49.3%	−0.188

Why stand is correct

A dealer showing Ace busts 16.7% of the time, and that bust chance is doing the work here: standing wins 54.4% 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 Ace finishes on 17–20 about 75.6% of the time, on 21 7.8%, and busts 16.7%. 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 hit instead of stand costs about $708 per 100 such hands at $25 a hand (−0.283 EV per dollar). The genuinely expensive error here is double: −0.466 per dollar, or roughly $1165 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.

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Related spots

soft 19 against other dealer cards:

vs 2 vs 3 vs 4 vs 5 vs 6 vs 7 vs 8 vs 9 vs 10

Other key hands vs a dealer Ace:

16 vs Ace 12 vs Ace 15 vs Ace soft 18 vs Ace 8,8 vs Ace

Frequently asked

Do you stand on soft 19 against a dealer Ace?

Yes — stand is the basic-strategy play for Soft 19 (A,8) vs Ace (EV +0.278 per $1). Hit is the second-best option at −0.006.

What are the odds of winning with soft 19 vs Ace?

Playing it correctly (stand), you win 54.4% of hands, push 18.9% and lose 26.7%.

Is it the same if the dealer hits soft 17?

Yes — under H17 rules the verdict is still stand.

Hit or stand on soft 19 against an ace?

Basic strategy says Stand. A genuine coin-flip — the gap is under half a cent per $1. Your chance of winning with the best play is about 54.4% (push 18.9%). Full EV math for every action is in the table above.