The Tulsa Drillers scored five runs in the top of the fourth inning and held on for a 7-4 win over NW Arkansas.
Kiel Roling and Chris Petit both homered to lead the way for Tulsa. Dan Houston won his tenth game of the season, pitching five innings and allowing one earned run.
The Drillers will now prepare for the postseason coming off a nine-game winning streak. Tulsa will have Tuesday off and begin the playoffs Wednesday in Springfield.
The Drillers narrowly topped the Cardinals in the regular season, posting a 16-15 record against them, but Tulsa did win three in a row in Springfield just last week.
Game one of the best-of-five playoff series against Springfield is scheduled for Wednesday at 7:05 in Tulsa.