Grant Hirschman of Collierville, Tennessee, shot a 5-under-par 66 in the second round of the Southeastern Amateur on Thursday to take a one-shot lead.
Hirschman stands at 7-under after two rounds on the par-71 Country Club of Columbus course.
He leads a trio of golfers -- John Jonas of Jacksonville, Florida, Charlie Martin of LaGrange, Georgia and Shad Tuten of Savannah, Georgia, -- by one shot.
Jones had a 67 on Thursday, and Martin had a second-straight 68.
Tuten, the first-round leader after shooting a 65, fell back with an even-par 71.
Cody Proveaux of Lexington, South Carolina, and Corey Carlson of Green Cove Springs, Florida, are tied for fifth at 5-under 137. Proveaux shot a 66, while Carlson had a 68.
Former Brookstone and current Georgia golfer Parker Derby is the leading local player. Derby is in a seven-way tie at 3-under 139.
Defending champion Seth Reeves leads a group of four at 2-under 140. Reeves shot a 68 after opening with a 72. Former Brookstone and current Columbus State golfer Cates Culpepper is also in that group. Culpepper shot a 72.
The best round Thursday was turned in by Michael Balzer of Bluffton, South Carolina. He shot a 65 one day after shooting a 79.