Giles worked around a double to record a scoreless ninth inning and close out Houston's 5-0 win over Philadelphia on Tuesday.
Giles was brought into a non-save situation because he'd thrown just a third of an inning since July 17. The right-handed closer has been called on 14 times in non-save situations and posted a 4.05 ERA, having allowed six runs, nine hits and eight walks over 13.1 innings.