"One slugfest, one comeback and, with Wednesday's 3-1 victory over the Chicago Cubs, one pitchers' duel. The Astros, who for two months had a hard time winning much of anything, may have just won for the cycle.

However you want to describe them, the three victories in front of unusually disinterested crowds at Wrigley Field added up to the Astros' first sweep of the season in their 19th series.

"Here and there, breaks might not have fallen our way," said Michael Bourn, who produced the winning hit in the late innings for the second day in a row. "But here in this series, everything fell our way."

Contributing to a 22-34 start have been leads not held, pitching performances not supported and rallies unfulfilled. There were none of the above in this series and especially not Wednesday, as Brett Myers set the tone with six strong innings, and Bourn came through in the seventh.

The teams went to the seventh inning tied at 1, with Kosuke Fukudome and Jason Michaels trading early home runs. The Astros loaded the bases on singles from Jeff Keppinger and Chris Johnson, the latter coming off the face of Aramis Ramirez on a fluky hop at third, and a walk to J.R. Towles.

With two outs and the Cubs having brought in lefty Sean Marshall specifically to face him, Bourn singled into right field, scoring a pair."