Champlain Islands Marathon and Half Marathon

Sun, Oct 18, 2026
United States
South Hero
100% asphalt
gmaa.run
World Athletics

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Road runs in United States, South Hero

Distances

Running
Marathon
42.2 km
Start: Oct 20, 09:00 AM
Running
Half Marathon
21.1 km
Start: Oct 20, 09:00 AM

About

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Catering & aid stations

Please refer to the event website for details on aid stations and refreshments.

Pacers

Pacers will be available for both the marathon and half-marathon, announced on race day with target times per start wave and pace-flag guidance.

Results

View official results

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Surface mix

100% asphalt

Typical weather in South Hero

Monthly averages based on historical data (2000–present).

Jan27°14°

↑ 07:28

↓ 16:38

Feb28°15°

↑ 06:56

↓ 17:21

Mar37°23°

↑ 07:06

↓ 19:00

Apr48°35°

↑ 06:09

↓ 19:39

May62°47°

↑ 05:25

↓ 20:16

Jun71°58°

↑ 05:07

↓ 20:42

Jul77°65°

↑ 05:22

↓ 20:37

Aug76°65°

↑ 05:57

↓ 20:00

Sep69°58°

↑ 06:33

↓ 19:05

Oct56°47°

↑ 07:10

↓ 18:09

Nov44°35°

↑ 06:52

↓ 16:26

Dec33°24°

↑ 07:25

↓ 16:14

Weather data by Open-Meteo

What's included in entry

Race number
Timed results

Finisher medal
Race tee

FAQ

What is the course like?

The marathon and half-marathon are held on a flat, paved out-and-back course on South Hero and Grand Isle with scenic views. The half-marathon is out and back; the marathon is two laps of the half-marathon course.