Arizona beats Colorado, 8 – 5. Brandon Webb improves to 9-0 after 9 starts; it is the best start since Andy Hawkins won his first ten in 1985.

On May 16, 2008 — Arizona beats Colorado, 8 – 5. Brandon Webb improves to 9-0 after 9 starts; it is the best start since Andy Hawkins won his first ten in 1985.

Source:
Baseball Reference May 16