Lowder did not factor into the decision in Saturday's 3-0 loss to the Cubs, allowing three hits and three walks with one strikeout over five scoreless innings.
Lowder (2-1) got the win Saturday against the Pirates, allowing five hits and two walks while striking out four over five scoreless innings.
Lowder (1-2) was saddled with the loss Sunday, allowing three runs on six hits and one walk across 5.1 innings against the Twins. He struck out five.
Lowder did not factor into the decision Thursday against Houston, allowing four hits and four walks over 6.1 scoreless innings. He struck out three.
Lowder is scheduled to start Thursday's game against the Astros in Cincinnati.
The Reds selected Lowder's contract from Triple-A Louisville on Friday.
The Reds plan to call up Lowder from Triple-A Louisville to start the second game of Friday's doubleheader versus the Brewers in Cincinnati, C. Trent Rosecrans of The Athletic reports.
Lowder allowed three runs while striking out seven over six scoreless innings for Triple-A Louisville on Thursday, Jesus Cano of MLB.com reports.
Lowder has been promoted from Double-A Chattanooga to Triple-A Louisville.
Cincinnati pitching coach Derek Johnson noted Friday that Lowder has improved his breaking ball since being promoted to Double-A Chattanooga, C. Trent Rosencrans of The Athletic reports.