All marathons

Late September · Northeast · Point-to-Point

Clarence DeMar Marathon

Keene, NH

Historic fall foliage marathon

  • Best for PR
  • Boston Qualifier
  • Scenic
Official site

Opens the race organizer's website

Typical start temp
55°F(estimated)
Field size
~800 runners(estimated)
Course
Net downhill
Elevation
150 ft gain · -500 ft net(estimated)

Why runners choose this race

A point-to-point course around Keene, NH, that gives back elevation for most of the race.

Good fit if

  • · PR attempts
  • · Boston qualification
  • · Runners who care about scenery
  • · Runners who want a low-key start

Think twice if

  • · You want crowds and on-course energy

Course and logistics

Course type
Point-to-Point
Surface
Road
Total gain
150 ft(estimated)
Total loss
650 ft(estimated)
Net elevation
-500 ft(estimated)
Field size
~800 runners(estimated)
Crowd support
Quiet, low-key
Entry
Data coming soon
Start / finish
Start and finish in different locations

Race details

Typical timing
Late September
Region
Northeast
Editorial tier
Featured
Data last reviewed
2026-08-26

Historic fall foliage marathon

Good to know

  • Best for PR
  • Boston Qualifier
  • Scenic
  • Point-to-point
  • Net downhill
  • Destination race

Race-day weather

Modelled from location, month and coastal proximity — not verified race history.

Typical start
55°F(estimated)
By midday
66°F(estimated)
Dew point
48°F(estimated)
ExcellentGoodWarmHeat risk

Typical start sits at 55°F good conditions.

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Course
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Elevation
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Elevation
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Field size
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Course
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Elevation
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