Washington Nationals at St. Louis Cardinals

On Sunday, September 20, 2026, the St. Louis Cardinals defeated the Washington Nationals 5-3 at home. Our statistical model backed Washington on the run line at +1.5 with a high rating, but the two-run margin meant the Nationals failed to beat the tracked spread, going down as a loss.

To its credit, the model read the Cardinals' offensive baseline cleanly. It projected St. Louis to finish with five runs based on recent scoring trends, and the Cardinals hit that target precisely. It also rightly anticipated a game that would stay within striking distance rather than turning into a runaway rout.

The critical flaw lay in Washington's run support. The model projected six runs for the Nationals, forecasting an outright road upset. Instead, Washington's lineup generated only three runs, falling well short of expectations. That three-run offensive deficit wiped out our tracked 1.5-run cushion and left the pick on the wrong side of the final ledger.