Christian Colon, a former first-round Draft pick and the Royals' No. 17 prospect, according to MLB.com, went 2-for-4 with a double, home run and two RBIs. Right-hander Brian Sanches pitched 5 2/3 scoreless innings for the victory while Michael Mariot earned the save.
Omaha, the Northern Division champion, holds a 10-8 edge in the season series against Oklahoma City. However, the Storm Chasers are 4-5 on the road.
Rookie level Idaho Falls is also playoff bound following a 12-7 victory against Orem on Wednesday. The Chukars clinched the Pioneer League South for their first playoff berth since 2007 -- ending the longest playoff drought in the league. They will host a playoff game on Monday and one on Sept. 14 should they advance past Grand Junction.
Dick Kaegel is a reporter for MLB.com. Kathleen Gier is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.