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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Half Marathon
  • 21.1 km
  • Boise
  • Event weekend starts
  • Open entry

City of Trees Marathon 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.

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

Decision summary

City of Trees Marathon Half Marathon at a glance

Typical conditions
89/100

Historical race-date favourability, not a forecast

Evidence depth
28 verified facts

Stored GPS route

Quick answers

What runners ask first

City of Trees Marathon Half Marathon route map

raceindex.org has a GPS course file for City of Trees Marathon 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.

Where does the City of Trees Marathon Half Marathon route go?

Underfoot, expect paved. It passes Boise River, Boise Greenbelt, Ann Morrison Park, Kristin Armstrong Municipal Park and Heron Park.

Race character

Scenery

  • Parkland
  • Riverside
  • City
  • Waterfront
  • Forest

Entry, logistics and records

Entry requirements

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

Race day logistics

Expo / packet pickup
Packet pickup at Shu's Idaho Running Company (Thu Oct 9, 12:00-18:00) and Payette Brewing (Fri Oct 10, 12:00-20:00; Sat Oct 11 race morning, 05:00-07:30)
Medal
All finishers receive a finisher medal across all distances
Finisher tee
Long-sleeve t-shirt included with registration completed before October 1, 2026

Course facts

Course type
Out And Back
Surface
Paved
Landmarks
Boise River, Boise Greenbelt, Ann Morrison Park, Kristin Armstrong Municipal Park, Heron Park, Anne Frank Human Rights Memorial, Veterans Memorial Bridge, 9th Street Bridge, Red Bridge, Truss Bridge
Notable features
  • USATF-certified courses
  • staggered start times (Marathon 08:00, Half 08:30, 10K and 5K 09:00)
  • awards for top 3 overall male and female and top 3 by age group per distance
  • awards ceremony at 10:15
  • free parking
  • aid stations roughly every 2 miles with water, electrolytes/sports drink, GU gels and first aid

What are typical race-day conditions?

  • 13°CTypical temperature
  • 18 kphTypical wind
  • 1 mmTypical rainfall
  • 89Favourability /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.

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 →