Champlain Islands Marathon
Champlain Islands Marathon race day weather
Cool start, mild afternoon
Runners will face a temperature increase from 41°F at the start to 50°F by race's end. With a light wind from the west at 7 mph, conditions remain manageable, but humidity at 71% could add to perceived effort. To combat the cool morning, runners should consider a throwaway layer for the pre-race period, while pacing adjustments may be necessary as temperatures rise on later laps.
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Champlain Islands Marathon route and elevation
The Champlain Islands Marathon course has about 828 ft (252 m) of climbing and 828 ft (252 m) of descent, and finishes near the elevation it starts. It is hillier than 69% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 25, with 113 ft (34 m) of climbing and a 2% average grade.
Biggest climbs
- Miles 2.5 to 3.4: climbs about 85 ft (26 m).
- Miles 10.9 to 11.9: climbs about 105 ft (33 m).
- Miles 24 to 25: climbs about 105 ft (33 m).
What the hills cost
- 3:30 on a flat course is about 3:31 here (1 minute slower).
- 4:00 on a flat course is about 4:02 here (2 minutes slower).
- 4:30 on a flat course is about 4:32 here (2 minutes slower).
Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.
Even-effort splits for a 3:30, 4:00 or 4:30 finish
| Mile | Climb | Descent | 3:30 | 4:00 | 4:30 |
|---|---|---|---|---|---|
| 1 | 24 ft | 0 ft | 8:08 | 9:17 | 10:27 |
| 2 | 12 ft | 95 ft | 7:38 | 8:44 | 9:49 |
| 3 | 41 ft | 28 ft | 8:03 | 9:12 | 10:21 |
| 4 | 60 ft | 62 ft | 7:56 | 9:04 | 10:12 |
| 5 | 15 ft | 44 ft | 7:49 | 8:56 | 10:03 |
| 6 | 40 ft | 14 ft | 8:09 | 9:19 | 10:29 |
| 7 | 28 ft | 38 ft | 7:54 | 9:02 | 10:10 |
| 8 | 22 ft | 39 ft | 7:52 | 9:00 | 10:07 |
| 9 | 48 ft | 24 ft | 8:08 | 9:17 | 10:27 |
| 10 | 67 ft | 46 ft | 8:07 | 9:17 | 10:26 |
| 11 | 25 ft | 53 ft | 7:50 | 8:56 | 10:04 |
| 12 | 98 ft | 8 ft | 8:41 | 9:57 | 11:11 |
| 13 | 0 ft | 0 ft | 7:57 | 9:04 | 10:12 |
| 14 | 0 ft | 0 ft | 7:56 | 9:04 | 10:12 |
| 15 | 4 ft | 95 ft | 7:36 | 8:42 | 9:47 |
| 16 | 42 ft | 25 ft | 8:05 | 9:14 | 10:24 |
| 17 | 57 ft | 65 ft | 7:55 | 9:03 | 10:10 |
| 18 | 27 ft | 50 ft | 7:51 | 8:58 | 10:05 |
| 19 | 40 ft | 10 ft | 8:11 | 9:21 | 10:32 |
| 20 | 22 ft | 44 ft | 7:51 | 8:58 | 10:06 |
| 21 | 28 ft | 34 ft | 7:55 | 9:03 | 10:10 |
| 22 | 45 ft | 12 ft | 8:13 | 9:23 | 10:34 |
| 23 | 62 ft | 42 ft | 8:06 | 9:16 | 10:25 |
| 24 | 10 ft | 66 ft | 7:43 | 8:49 | 9:56 |
| 25 | 113 ft | 8 ft | 8:50 | 10:06 | 11:21 |
| 26 | 0 ft | 24 ft | 7:51 | 8:58 | 10:05 |
| Last 0.2 | 0 ft | 5 ft | 1:45 | 2:00 | 2:15 |
Explore the Champlain Islands Marathon course with the weather and your pace along the route, or compare it with other races.
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About the Champlain Islands Marathon
The USATF-certified (VT24002JK) marathon and half marathon begin and end at Folsom Elementary School in South Hero, VT, near the former home of Clarence H. DeMar, seven-time Boston Marathon winner. The half marathon course is out and back along the west shore of South Hero and Grand Isle, through farms, apple orchards, and summer cottages, with flat to rolling, entirely paved terrain. The marathon is two laps of the half marathon course. Start/finish elevation is about 190 feet, with a high point of 210 feet (miles 1 and 25) and a low point of 100 feet. The marathon cutoff is 6 hours; the half marathon cutoff is 4 hours. The course qualifies for Boston Marathon entry. The race was formerly named the Green Mountain Marathon; its current certification (VT24002JK) supersedes the earlier certification issued under that name.