Tryptophan Half Marathon, 10K & 5K

Thursday, November 28, 2024 • Cumming, GA • Course Map

Earn your right to indulge to your heart’s desire on Thanksgiving Day with a run down and back up the Big Creek Parkway just outside Atlanta at the Tryptophan Half Marathon, 10K & 5K, which makes its 14th annual running on the morning of Thanksgiving Day in November 2024.

Hosted by Five Star NTP, a locally based race management company, the Tryptophan Half is set to follow an out-and-back course that starts and finishes at Fowler Park, along Carolene Way in Cumming.

From there, the course is a simple one — from the starting line, runners head out onto the Big Creek Greenway, a combination boardwalk and concrete trail that winds through the area known as Big Creek, along a 12-foot-wide path for most of the route. After they make the turn, runners then retrace their steps all the way back to Fowler Park for the race finish.

The scheduled starting time for the race is 7:30 AM, and organizers plan to limit the race to 3 hours, which means you’ll need to complete the 13.1-mile run by 10:30 AM in order to be an official finisher in the race.

Race Weather & Climate

Nestled along the southeastern end of Lake Lanier in north Georgia, about 40 miles northeast of Atlanta and roughly 110 miles southeast of Chattanooga, Tenn., Cumming typically sees November temperatures that average between 39°F and 62°F, while precipitation amounts average just over 3.7 inches for the month.

On race day (Nov. 28), the average low is 35ºF and the average high is 57ºF.

Past Results

Course Map

See the race route map for the Tryptophan Half Marathon here.

Starting Time

  • 7:30 AM – half marathon
  • 8:00 AM – 10K, 5K


  • $55 – $70 for the half marathon
  • $35 – $50 for the 10K
  • $30 – $40 for the 5K
  • $40 for the virtual race


To reserve your spot in the 2024 running of the Tryptophan Half Marathon, 10K or 5K race, register online at here.

Official Race Website


Ever run in the Tryptophan Half Marathon? Share your impressions here, or post your review in the Comments below.

See more races in: November, Georgia