Columbus native Tyler Duncan fired an opening-round 6-under-par 65 Thursday and is in a tie for fourth place in the AT&T Byron Nelson Championship.
Duncan, a 2008, Columbus North graduate carded a 5-under 31 on the front nine and a 1-under 34 on the back at TPC Four Seasons Resort in Irving, Texas. Mark Leishman leads the tournament at 10-under 61.
