Lowder is scheduled to start the Reds' third game of the season Sunday versus the Red Sox in Cincinnati, Rich Rovito of MLB.com reports.
The Reds adjusted their rotation plans with Nick Lodolo (finger) opening the season on the injured list. Lodolo had been scheduled to pitch Saturday, but he will be replaced by Brady Singer, while Lowder moves up a day to pitch in Singer's spot. Lowder made his final start of the spring Tuesday, tossing 50 pitches over three innings in an exhibition against Milwaukee.