Gilbreath started Wednesday's game against the Angels, allowing one run on two hits and two walks over an inning.
The 25-year-old operated as an opener Wednesday after the Rockies were forced to go with a bullpen game after Chi Chi Gonzalez (undisclosed) was placed on the COVID-19 IL. Gilbreath broke a streak of four straight scoreless outings and now owns a 6.41 ERA, 1.68 WHIP and 19:13 K:BB over 19.2 innings.