Qualified for his second U.S. Open via the Memphis, Tenn., but this time he didn't need alternate status to get into the field. In 2013, he replaced reigning U.S. Senior Open champion Roger Chapman, who withdrew just prior to the championship. Stallings posted 8-under 135 at Ridgeway Country Club/Colonial Country Club to garner one of the 11 available berths. Stallings was a two-time Ohio Valley Conference player of the year at Tennessee Tech. He posted seven victories and was named an All-American in 2006. Since turning pro in 2007, he has registered three PGA Tour victories, the last coming in the 2014 Farmers Insurance Open at Torrey Pines.