Green Mountain Marathon & Half Marathon

Sun October 17, 2021 South Hero, VT 05486 US Directions

Half Marathon

$40 8:30AM EDT
380 spots left. Registration ends October 16, 2021 at 11:59pm EDT


$60 8:30AM EDT
321 spots left. Registration ends October 16, 2021 at 11:59pm EDT

Please stay home on race day if you are feeling sick, have come into contact with someone who is feeling sick, or if you don’t meet the Vermont State COVID restrictions. Thank you for helping keep our community safe.

GMAA races follow Vermont State guidance regarding COVID-19.  Racers, volunteers, and spectators must adhere to COVID-19 guidance.  If you plan to travel from outside of Vermont, please check the state's travel guidelines prior to registering to ensure that you are traveling from a county approved for cross-state travel without quarantining, or you will have to follow State guidance regarding quarantine and/or testing.

COVID-19 race precautions will be evaluated and updated as the race date approaches.


Folsom Elementary School
75 South Street
South Hero, VT US 05486

Holding an in-person race this year requires some special considerations, and we are making adjustments to assure the safety of racers and volunteers.  We hope that you understand and that you can join us for this fun event.



The certified (VVT15005JK) marathon and half-marathon begin and end near the house where Clarence H. DeMar, seven-time Boston Marathon Winner, once lived. The half-marathon course is out and back on the west shore of South Hero and Grand Isle; a land of farms, apple orchards, and summer cottages. The terrain is flat to rolling and about 75% dirt road (hard packed and well maintained). NEW IN 2021: The full marathon course is two laps of the half-marathon course. This helps us improve our logistics and provide a better experience for our racers.

The time cut off for the marathon is 6 hours.  The time cut off for the half-marathon is 4 hours.


Aid Stations

There will be an aid station approximately every 2 miles starting at mile 2 and stopping at mile 24 for a total of 12 aid stations (2-3 porta-potties on course). Water and electrolyte drink will be supplied at all aid stations. Additional assistance will be available to runners in the form of sweep vehicles.



Pre-registration is now open. Register Online (online registration closes Oct 16).

  • Entry fee for marathon is $60 pre-registration; $70 race day (GMAA members subtract $10).
  • Entry fee for half-marathon is $40 pre-registration; $50 race day (GMAA members subtract $5).
  • Race day registration is from 7am to 7:45am
  • Maximum total number of runners is 750.
  • There is no race refund if you cannot participate.
  • There are no deferrals.
  • There is no wait list.
  • There are no bib transfers.

You may change the race distance. There is a $10 charge for switching from the full marathon to the half-marathon (no refund will be given for the difference in price). There is a $10 charge for changing from the half-marathon to the full marathon plus the difference in price. See the "Transfer Event" page from the menu to make changes.

Please confirm that you are registering for the correct event: Half-Marathon or Full Marathon before your complete your transaction. Thank you!



All participants will receive a race shirt.  Shirts are unisex-sized.



Runners must be age 16 or older.


Packet Pickup

Other runners may pick up a friend or family member's race packet.

SkiRack (located at 85 Main Street, in Burlington, VT) will be offering a 20% discount on all running gear (except for electronics, which is 10% discount) to anyone who presents a Green Mountain Marathon race Bib October 11th-October 13th.



Awards will be given to the top three overall male and female finishers, the top masters, as well as the top male and female finisher in each age-group.

Medals to all marathon and half-marathon finishers.


Spaghetti Dinner

The Folsom School's 7th and 8th graders welcome you to South Hero, Vermont! Pick-up your race packet and join us at our Infinite Pasta-bilities Dinner at Folsom School on Saturday, October 16, 2021 from 4:00 pm to 7:00 pm. Don't miss this opportunity to check out the running route and dine on pasta with local vegetables, marinara sauce, meatballs, and pesto as well as salad and other sides. The meal will be followed by a tasting from a selection of mouth-watering local apple desserts.

The cost is $5 for children and $10 for adults. All proceeds will benefit the 7/8 team's spring trip. We hope you will come! Questions about the dinner: Please contact Julie at



Island Lodging on the race course (primarily small inns and B&Bs):

Lodging at exit 16 off Route 89 (Colchester/Winooski)

Lodging at exit 14 off Route 89 (Burlington/South Burlington)



If you can picture the Lake Champlain Islands in mid-October, then you have reason to join us. If you have never seen Vermont or the 'Islands' in October, then you have even more reason to join us with your entire family.


Past Runner Testimonials

Marathon provides runner feedback for various races. Follow this link to hear what other runners have had to say about the Green Mountain Marathon and Half Marathon.

The Green Mountain Marathon is held for runners by runners. Our goal is to offer a quality marathon at an affordable price in a relaxed setting.  Come join us!



As with any event, it takes volunteers to make things happen. If you or anyone you know would like to volunteer at our race, we would greatly appreciate it. We need volunteers in the following areas: Water Stops/Aid Stations, Crossing Guards/Course Marshals, Packet pick-up, Finish Line, Traffic/Parking, and Runner Food Preparation.

Please email



Race Directors: Nik Ponzio and Bob Monette email:


Course Features

  • Certified Marathon with all miles marked
  • Can be used to qualify for the Boston Marathon
  • Start and finish at 190' elevation
  • Max elevation: 210' (miles 1 and 25)
  • Min elevation: 100' (several locations)
  • Lake Champlain elevation: 95'

NOTE: GMAA/Insurance rules prohibit running with a baby jogger or dog. For safety reasons and as a courtesy to fellow runners, GMAA strongly discourages the use of headphones.

There are no refunds, deferrals, or transfers.



Race Contact Info

If you have any questions about this race, click the button below.


Race Participant Survey

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