Atlanta optioned Ritchie to Triple-A Gwinnett on Monday.
Ritchie is being sent down one day after making a spot start against the Nationals, during which he gave up a pair of runs over four innings. The young right-hander has logged a 4.50 ERA and 53:36 K:BB over 58 innings covering eight starts and six relief outings during his time with the big club this season.