Blackjack Trainer: 21 Coach

Pair of 9s vs dealer 7: hit, stand, or split?

Stand. Pair of 9s against a dealer 7 is played the same way whether the dealer hits or stands on soft 17.

Why

Nines are the exception-heavy pair. Against most cards two fresh hands beat one 18, but against a dealer 7, 10, or ace the 18 is already good enough to keep.

A pair is two cards of the same value, and any two 10-value cards count as a pair of 10s. Played as one hand, this pair is a hard 18: see Hard 18 vs dealer 7.

The numbers

How a dealer 7 finishes (6 decks; rounded)
Dealer rule1718192021Bust
Either dealer rule37%14%8%8%7%26%
Average result per hand for each play (6 decks; higher is better)
PlayEither dealer rule
Stand+0.40best
Split+0.37
Surrender (where offered)-0.50
Hit-0.59
Double down-1.17

Scoring: a win scores +1, a loss -1, a tie 0, and a doubled hand counts twice. Surrender scores -0.50. Hit means take a card, then play on as well as possible. These are averages over many hands from the strategy audit behind the app, rounded and approximate. Any single hand can go either way.

Rules assumed

One-deck and two-deck games, tables without surrender, and dealers who do not check for blackjack change some plays. Check your table's rules before relying on any chart.

Both soft 17 rules are shown. The two charts differ on only 6 of 360 hands: see the dealer hits and dealer stands charts. The plays come from the verified 4 to 8 deck tables behind the Blackjack Trainer app (bs_4to8_h17_peek and bs_4to8_s17_peek).

Common questions: Pair of 9s vs dealer 7

What is the correct play for a pair of 9s against a dealer 7?

Stand. This is basic strategy for 4 to 8 decks, and it is the same whether the dealer hits or stands on soft 17.

Does the soft 17 rule change a pair of 9s against a dealer 7?

No. The play is the same whether the dealer hits or stands on soft 17. Only a handful of hands on the chart change with that rule, and this is not one of them.

Should I split 9s against a dealer 7?

No. Stand. Nines are the exception-heavy pair. Against most cards two fresh hands beat one 18, but against a dealer 7, 10, or ace the 18 is already good enough to keep.

Does basic strategy guarantee a win?

No. It picks the play with the best average result, but any single hand can go either way, and the house keeps a small edge. This site and the Blackjack Trainer app are for practice only.