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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Trondheim
  • Event weekend starts
  • Past event

Trondheim Maraton 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 0.4% versus flat · net elevation 1 m

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

Decision summary

Trondheim Maraton Half Marathon at a glance

Route ascent
127 m

Lower than 60% of comparable mapped races

Typical conditions
85/100

Historical race-date favourability, not a forecast

Evidence depth
25 verified facts

Stored GPS route

Quick answers

What runners ask first

Trondheim Maraton Half Marathon route map

raceindex.org has a GPS course file for Trondheim Maraton 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 Trondheim Maraton Half Marathon?

The Trondheim Maraton Half Marathon route has 127 m of ascent, 125 m of descent and an estimated 0.4% grade-adjusted pace penalty versus a flat route.

Where does the Trondheim Maraton Half Marathon route go?

The Trondheim Maraton Half Marathon route starts at Torvet (the main square) in central Trondheim and finishes at Torvet (the main square) in central Trondheim. It passes Trondheim city centre, Nidelva river, Lade and Tempe. Brilliant Halvmaraton, 21.0975 km, one lap, kontrollmålt og AIMS godkjent (measured and AIMS-certified).

Race character

Scenery

  • City
  • Waterfront
  • Riverside
  • Historic

Atmosphere

  • Big City
  • Scenic Tour

Entry, logistics and records

Records and field

Field size
14623 participants in 2025 (a new record)

Entry requirements

Entry status
Past event: The listed edition date has passed.

Access and course status

Start
Torvet (the main square) in central Trondheim
Finish
Torvet (the main square) in central Trondheim
Spectator friendliness
high

Course facts

Course type
Loop
Landmarks
Trondheim city centre, Nidelva river, Lade, Tempe
Notable features
  • Held annually on the first weekend of September
  • Saturday is a children's and family day, Sunday is the main race day
  • Brilliant Halvmaraton, 21.0975 km, one lap, kontrollmålt og AIMS godkjent (measured and AIMS-certified). Minimum age 15

How hilly is the Trondheim Maraton Half Marathon?

10%79%11%
  • Steep descent 0%
  • Descent 10%
  • Flat 79%
  • Climb 11%
  • Steep climb 0%
Total ascent
127 m
Net elevation
+1 m
GAP factor
0.4%
Longest climb
1,570 m at 1.7%
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?

  • 12°CTypical temperature
  • 16 kphTypical wind
  • 4 mmTypical rainfall
  • 85Favourability /100
Typical conditions for the race date and locality, warmer than 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 Trondheim Maraton Half Marathon flat?

Its normalised GAP factor is 0.4% slower than a flat course, with about 127 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 (2)

Read the full methodology →

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