von Trapp Mountain Marathon
Oct 17Stowe, VTMarathon, Half Marathon
Also a marathon, 30 mi from Champlain Islands Marathon & Half Marathon, registration open
12 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planRace Date, Time and Location for 2026 Events
DATE: Sunday, October 18, 2026
TIME: 8:30 AM
LOCATION: Folsom Elementary School, 75 South St, South Hero, VT 05486
The Full and Half Marathon will both start at 8:30 AM directly in front of the Folsom Elementary School.
Course
The 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.
USATF Certification (VT24002JK)
The entire course is paved. The full marathon course is two out-and-backs of the half-marathon course.
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.
Registration
Pre-registration is now open. This event has sold out in recent years. Register early for guaranteed entry and best pricing.
GMAA members subtract $10 for Full Marathon, $5 for Half Marathon.
Race day registration is from 7am to 7:45am.
Maximum total number of runners is 500.
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. To transfer event follow these instructions:
1) Log into your Runsignup account at this link: https://runsignup.com/Profile#tab-upcoming-races
2) Find the Champlain Islands Marathon & Half Marathon section under "Upcoming Events" and Click on "Manage Registration"
3) Click on "Transfer Event" at the top.
4) Follow the prompts to continue the process.
Please confirm that you are registering for the correct event: Half-Marathon or Full Marathon before your complete your transaction. Thank you!
Shirts
All participants will receive a race shirt.
Restrictions
Runners must be age 16 or older.
Packet Pickup
Other runners may pick up a friend or family member's race packet.
Friday, Oct. 16th - 12-6 pm at SkiRack
Saturday, Oct. 17th - 12-6 pm at SkiRack
Sunday, Oct. 18th - 7-8 am at Folsom School
SkiRack is located at 85 Main Street, in Burlington, VT.
Awards
Awards will be given to the top overall male, female & non-binary finishers, the top masters, as well as the top finisher in each age-group. Please see the race director if you need leave before the awards ceremony.
Medals to all marathon and half-marathon finishers.
Lodging
Island Lodging on the race course (primarily small inns and B&Bs):
Crescent Farm Bay Farm B&B 1-802-324-5563 (mile 2-3)
Ferry Watch Inn 1-802-777-2530 (mile 8-9)
link to full list of island lodging (maintained by the Islands Chamber of Commerce)
Lodging at exit 16 off Route 89 (Colchester/Winooski)
Residence Inn 1-802-655-3100
Hampton Inn 1-802-655-6177
Lodging at exit 14 off Route 89 (Burlington/South Burlington)
Best Western 1-800-780-7234
Holiday Inn 1-800-863-6363
Attractions
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.
Lake Champlain Islands Chamber of Commerce (800) 262-5226
Burlington Things-To-Do
Lake Champlain Ferries (802) 864-9804
Past Runner Testimonials
Follow this link to hear what other runners have had to say about the our event.
The GMAA Champlain Islands 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!
Volunteers
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 sign up on our Volunteer Registration Page
Information
Please see "Race Day Instructions" sheet for all latest logistics. If you can't find the answers you need, please email Race Directors, Nik Ponzio and Heather Feldman at: cim@gmaa.run
Course Features
Certified Marathon with miles 1-13 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.
Registration opens
Nov 30, 2025
Tier 1 ends
Dec 30, 2025
Tier 2 ends
Oct 15, 2026
Registration closes
Oct 18, 2026
Race day
Oct 18, 2026
Tier 3 ends
Oct 18, 2026
Marathon
Tier 2, then $90 from Oct 16, 2026
$80
Half Marathon
Tier 2, then $70 from Oct 16, 2026
$60
Registration openings and major changes, like a new date or a cancellation.
| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Aid station One of 12 aid stations placed approximately every 2 miles. | 2.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 4.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 6.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 8.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 10.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 12.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 14.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 16.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 18.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 20.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 22.00 miles | -- | waterelectrolyte drink | ||
Aid station One of 12 aid stations placed approximately every 2 miles. | 24.00 miles | -- | waterelectrolyte drink |
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
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Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
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