No makeup date was announced because the teams play in different National League divisions and it likely will not have a bearing on this season's playoff picture.
Sunday's cancellation followed a lengthy rain delay before the game's scheduled start. It ended the Cards' lone visit to Washington this season.
The Cardinals, whose 17-8 mark equals the Los Angeles Dodgers for the NL's best record, won two of the three games played at Nationals Park.
The Nationals, at 6-17, have the NL's worst record, but recorded a 6-1 win Saturday.
Washington is scheduled for a three-game series at St. Louis Aug. 28-30.
Copyright 2009 by United Press International.
Post new comment