Marana, Ariz. (April 21, 2012) -- Darin Overson and Dan Horner took the first day lead yesterday at the Gallery Invitational in Marana, Ariz. with a first round 64. The teams of Jeff Jolley/Jim Scorse and Trey Martin/Adam Walicki both posted 66 and head into the second day two strokes back.In the Senior division, the teams of Randy Haag/Pete Wlodkowski and Mark Miller/Terry Forman also signed for first round 64's and are four shots clear of three teams who came in with 68's.