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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Duluth
  • Event dates –
  • Open entry

Wild Duluth Races Half Marathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change 9.8% versus flat · net elevation 29 m

View verified GPS mapOfficial event website & entry ↗
Plan my trainingPlan my paceData current as of

Decision summary

Wild Duluth Races Half Marathon at a glance

Route ascent
687 m

Lower than 7% of comparable mapped races

Typical conditions
80/100

Historical race-date favourability, not a forecast

Evidence depth
37 verified facts

Stored GPS route

Quick answers

What runners ask first

Wild Duluth Races Half Marathon route map

raceindex.org has a GPS course file for Wild Duluth Races Half Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Wild Duluth Races Half Marathon?

The Wild Duluth Races Half Marathon route has 687 m of ascent, 659 m of descent and an estimated 9.8% grade-adjusted pace penalty versus a flat route.

Where does the Wild Duluth Races Half Marathon route go?

The Wild Duluth Races Half Marathon route starts at Harder 'n Heck Half Marathon starts at Chambers Grove Park and finishes at the Spirit Mountain Grand Avenue Chalet; roughly 75% follows the Superior Hiking Trail. Underfoot, expect a trail course. It passes Superior Hiking Trail, Jay Cooke State Park, Ely's Peak, Bardon's Peak and Magney-Snively old growth forest. Post-race soup feed for 100K/50K finishers at Bayfront Park.

What should runners know on race day for the Wild Duluth Races Half Marathon?

Courses are marked with pink flagging and pins; the 50K and 100K also follow the Superior Hiking Trail's blue blazes. October temperatures typically range 37-52 degrees Fahrenheit.

Race character

Scenery

  • Forest
  • Lakeside
  • Riverside
  • Waterfront
  • City
  • Mountain
  • Parkland

Atmosphere

  • Community
  • Scenic Tour
  • Wilderness

Terrain

  • Trail
Elevation character
Hilly
Technicality
Technical

Entry, logistics and records

Records and field

Field cap
350

Entry requirements

Entry status
Open entry: The held registration model is open entry and this edition is not marked sold out.

Race day logistics

On-course music
Courses are marked with pink flagging and pins; the 50K and 100K also follow the Superior Hiking Trail's blue blazes. October temperatures typically range 37-52 degrees Fahrenheit.

Access and course status

Start
Harder 'n Heck Half Marathon starts at Chambers Grove Park and finishes at the Spirit Mountain Grand Avenue Chalet; roughly 75% follows the Superior Hiking Trail.

Course facts

Course type
Point To Point
Landmarks
Superior Hiking Trail, Jay Cooke State Park, Ely's Peak, Bardon's Peak, Magney-Snively old growth forest, Spirit Mountain Recreation Area, Enger Park, Mission Creek, St. Louis River, Bayfront Festival Park, Chambers Grove Park, Point of Rocks Park
Notable features
  • The Wildman / Wildwoman / Wildperson challenge rewards finishing a Saturday ultra (50K or 100K) plus a Sunday race (Half Marathon or 10K). Post-race soup feed for 100K/50K finishers at Bayfront Park
  • refreshments for half marathon and 10K finishers at Spirit Mountain. Volunteer discounts available for those who volunteer on the opposite day

How hilly is the Wild Duluth Races Half Marathon?

21%20%22%15%22%
  • Steep descent 21%
  • Descent 20%
  • Flat 22%
  • Climb 15%
  • Steep climb 22%
Total ascent
687 m
Net elevation
+29 m
GAP factor
9.8%
Longest climb
750 m at 12.4%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 9°CTypical temperature
  • 23 kphTypical wind
  • 3 mmTypical rainfall
  • 80Favourability /100
Typical conditions for the race date and locality, within the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the Wild Duluth Races Half Marathon flat?

Its normalised GAP factor is 9.8% slower than a flat course, with about 687 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →