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Washington Nationals vs St. Louis Cardinals Prediction, Odds & Preview — Sep. 20, 2026

· MLB

Washington Nationals visit the St. Louis Cardinals on September 20, 2026.

Prediction Lab's stored Sharp Consensus currently gives St. Louis Cardinals a 57.0% win probability. That figure is a statistical model output for this matchup — not a guarantee, and not betting advice.

Game information

DateSeptember 20, 2026
AwayWashington Nationals
HomeSt. Louis Cardinals

Model moneyline

ModelSideProb
Grinder2 St. Louis Cardinals 64.4%
Takedown St. Louis Cardinals 63.9%
Edge St. Louis Cardinals 50.0%
XSharp Washington Nationals 54.0%
Sharp Consensus St. Louis Cardinals 57.0%

Sharp Consensus: St. Louis Cardinals (57.0%)

Markets & projections

Prediction Lab proj9–1
XSharp proj3.5–3
PL total10
XSharp total6.5
XSharp run line-0.5
H2H10.3 combined runs over 3 meetings

Why the models split

The stored models split on this moneyline. St. Louis Cardinals: Grinder2 (64.4%), Takedown (63.9%), Edge (50.0%), Sharp Consensus (57.0%) Washington Nationals: XSharp (54.0%).

Sharp Consensus leans St. Louis Cardinals, while XSharp lean the other way on the stored probabilities.

Available sportsbook moneyline on the stored board: Washington Nationals -109, St. Louis Cardinals -109. Compare that price with the model probability before treating either as a pick.

Takeaway

This preview is built from Prediction Lab's stored Washington Nationals at St. Louis Cardinals board for September 20, 2026. The current Sharp Consensus lean is St. Louis Cardinals at 57.0%. Use the MLB picks page for the live card, then check graded results after the game. Model probabilities can be wrong; they are not locks.

Prediction Lab model outputs are statistical estimates from the stored board. They are not guarantees, not betting advice, and can miss.
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