Coastal Georgia Greenway 100 and 155 Mile Ultra (CGG 155, CGG 100)

CGG 100 and 155 Mile Ultras are set up on a waitlist for 2022 and beyond. If the minimum of 20 runners register on the waitlist for either of the distances by November 1st, 2021, the CGG 2023 will then be a go!

If we do not reach at least 20 runners by November 1st, CGG 100 and 155 will be canceled for that year. If canceled, your credit card will not be charged.

CGG 100 and 155 mile ultras are a go for 2022. This year the race begins in St. Mary’s and end in Savannah. We’re reversing the start for both distances.

CGG 155 Mile Ultra is now a Badwater 135 Mile Ultra Preferred Qualifying Race!

The CGG 155 came to fruition in 2015 by a group of friends from Savannah, Ga that were fascinated by the aspect of an envisioned long corridor of trails and green space spanning the coast of Georgia from St. Mary’s to Savannah, Ga. The visionary for the Coastal Georgia Greenway is Ms. Jo Claire Hickson. She’s worked hard for the past twenty years trying to bring to fruition her vision of the CGG. Our way of helping her realize her dream and vision is to host an annual long run the last weekend of March called the CGG 155. The more the CGG is promoted the greater the impact it will have on it coming to fruition.

The CGG is comprised of 20% trails and 80% on highways. Obviously, we would like the CGG to be all on trails but currently, we have to deal with highway running mostly.

The CGG 100/155 mile ultras start location alternates every year now.  For 2023, the CGG 155 starts Friday, March 3rd at 5:00 am at the steps leading to the river on Hutchinson Island, in between the Savannah International Convention Center and the Westin Hotel.  The race ends in St. Mary’s, GA at the Howard Gilman’s Memorial Waterfront Park, on the grassy area in front of the amphitheatre.  
For course map: mapmyrun155
For location: Click here

Digital copy of CGG 155 booklet: cgg1552020_v2

The CGG 100 starts on Friday, March 4th at 9:00 am in front of Brunswick Christian Academy on the intersection of Stuvant rd and Ocean Highway. 

Please note that you cannot park at the CGG 100 start for long as this is a remote location that we’re only using this location to launch the race from.

For course map: mapmyrun100
For location: Click here

Digital copy of CGG 100 booklet: cgg1002022_v2

How to import a mapmyrun course into your garmin: mapmyrunTOgarmin

The maximum time frame for the CGG 155 is 60 hours.

The maximum time frame for the CGG 100 is 34  hours.

Both races end at the same location, – St. Mary’s Howard Gilman Memorial Waterfront Park, 100 W. St. Mary’s St, St. Mary’s, GA 31558 at 5:00 pm.

For the CGG 155, runners will run through nine towns, fifteen jurisdictions and six counties.

For the CGG 100, runners will run through through six towns, twelve jurisdictions and four counties.

CGG runners may have a pacer after completing fifty miles.

Mandatory Check-in aid stations

  • Satilla Waterfront Park and Boat Ramp

Approximate miles between check-in stations:

County breakdown:
Chatham County: 31 miles
Bryan County: 9.34 miles
Liberty County: 18.28 miles
McIntosh County: 29.44 miles
Glynn County: 26.48 miles
Camden County: 40.89 miles

Buckles are only awarded when you complete the distance you registered for. Runners will be given their buckles upon finishing their race.

There are no drop downs allowed from CGG 155 to CGG 100.

All runners will receive a course booklet that you must present to the RD’s at every mandatory checkin.  At each mandatory check in you will receive a stamp on the booklet.

At the mandatory check in’s there will be basic aid station supplies such as gels, water, fizz and some food.  Runners are responsible for their own nutrition.

Runners or their crews are to give a status on their runner every four hours informing Dan Hernandez of the runner’s location and status. Please text Dan’s phone: 912.777.9147

It is advised to have a support team for the duration of the race but is not mandatory.  Support teams must not obstruct traffic whatsoever.  Runners and support teams are expected to respect private property and follow all Georgia traffic laws…failure to do so will cause disqualification.

Littering will not be tolerated.  So, don’t litter or, you’re in big trouble!



All Rough Runners events are cup free. You must bring your own water bottle.


  1. For any life threatening emergency please call 911.
  2. Runner or runner’s crew chief must check every six hours by text message or phone call.
  3. Runners must check in at every mandatory check in station.
  4. Provide race personnel your phone number and crew phone numbers.
  5. If you plan to take a break and spend the night during the duration of the race you must reach any of the mandatory check-in aid stations and inform us that you are leaving the course. You may then board a car and leave the course. Also, let us know when you plan to return so that we may have someone at that check in station upon your return to the race. When you return to the race you must return to the aid station you last checked in at.
  6. At any point during the race feel free to contact race personnel if you have any questions/problems/concerns.
  7. If you plan to end your race notify race personnel before doing so.
  8. Do not obstruct traffic! Your crew must park well off the road when supporting you.
  9. Please be mindful and respectful of private property.
  10. Do not litter.
  11. Run against traffic or on the sidewalk as much as you can.
  12. You must wear a reflective vest and, headlamp or other light device a half hour before dusk and continue to do so until a half hour after sunrise.
  13. Carry this booklet the duration of the race.