You have to be almost perfect to beat Kershaw in L.A. (or almost anywhere) but eight walks in less than four innings is FAR from perfect.  As others have noted, Chatwood has electric stuff but little control and even less emotional maturity.  The good news: the Rockies have a surplus of quality starting pitchers.  The bad news: they have no ace and too much youth at that position.  The worse news: it will be hard to see how the Rockies return home less than 6 games behind both Arizona & the Dodgers.