Gainesville High graduate Spencer Ralston carded a third-round 6-under par (66) Friday to take his total to 14-under par (202) and stands in a three-way tie for fourth place — one shot off the lead — at The Dogwood Invitational at the Druid Hills Golf Club in Atlanta. Ralston’s first three rounds have been 69, 67 and 66, respectively. Ralston, a rising University of Georgia sophomore, fired four straight birdies during his final nine holes the day and 32 on that side of the course.