Rome's Jill Horst finished the 13.1-mile course in 1:21:55 to win the women's division.
Toronto's Josh Cassidy won the wheelchair division of the half marathon in 50:38.
Will Hatchett, 13, was the first non-adult finisher with an unofficial time of 1:45:00. Hatchet is a seventh-grader at North Habersham Middle School.
Competitors are praising the race conditions, which saw temperatures around 60 degrees with overcast skies.