The Diamondbacks unexpectedly find themselves in first place in the NL West after beating Houston, 4 – 2, completing a three-game sweep. It is the D-Backs’ 14th win in their last 16 games, but manager Kirk Gibson is not there to enjoy it, having been ejected in the 4th inning for arguing a balk call against starter Josh Collmenter. Losing pitcher J.A. Happ hits his first major league homer for the Astros.