The Washington Nationals defeated the St. Louis Cardinals 1-0 on March 17, 2026, at CACTI Park of the Palm Beaches, with Washington's lone first-inning run holding up as the decisive margin across nine innings. The DiamondIQ model's estimate gave the home side a 62% win probability before first pitch, and that figure climbed steadily to 100% by game's end. Both clubs finished with four hits and no errors, making the pitching performances the defining story of a tightly contested shutout.
The most consequential stretch of the game came in the ninth inning, when Gus Varland worked through the Cardinals' lineup under mounting pressure. Bligh Madris singled to push St. Louis's win probability up 7.6 percentage points, representing the biggest offensive swing of the game, but Varland answered by striking out Ramon Mendoza — a swing worth negative 8.9% in win probability — and also retired Jordan Walker via strikeout (negative 7.1%) and Yohel Pozo on a flyout (negative 6.8%), preserving the victory. Earlier, Christian Franklin's eighth-inning strikeout against Scott Blewett had added 7.8% to Washington's win probability, quietly closing the door on a Cardinals threat.
On the pitching side, Varland was the game's most impactful performer at plus 25.9% WPA, followed by starter Jake Irvin at plus 19.0% and Dustin May at plus 17.1%, a trio that collectively neutralized a Cardinals offense that could not convert its four hits into any runs. Among position players, Madris led all batters at plus 7.6% WPA and plus 0.3 RE24, with José Tena contributing plus 5.0% WPA and a team-best plus 0.6 RE24, and Rafael Ramirez Jr. adding plus 2.4% WPA and plus 0.3 RE24 in support of Washington's winning effort.
Analysis generated by DiamondIQ's model.