Brad Keselowski ran a lap at 107.852 mph to lead opening practice for NASCAR Nationwide Series drivers at O'Reilly Raceway Park Saturday, returning to the top of the leaderboard for Happy Hour after posting a faster lap of 109.173 mph.

Completing the top-five fastest in the first session were Ron Hornaday, Jr., Morgan Shepherd, Jason Leffler and James Buescher.

Paul Menard, Ron Hornaday, Jr., Jason Leffler and Matt Dibenedetto rounded out the top-five in Happy Hour.

Nationwide Series qualifying gets underway at 5 pm ET Saturday afternoon at ORP.

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