Marathon
42.2 km
Boise
2026-10-11
Open entry

City of Trees Marathon

View verified GPS map Official event website & entry ↗Plan my paceData current as of 2026-07-06

Decision summary

City of Trees Marathon at a glance

Cut-off pace: 8:32/km
Typical conditions: 89/100
Evidence depth: 35 verified facts

Quick answers

What runners ask first

City of Trees Marathon route map

RaceIndex has a GPS course file for City of Trees 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 City of Trees Marathon?

The City of Trees Marathon is described as gently rolling.

Where does the City of Trees Marathon route go?

Underfoot, expect paved. It passes Boise River, Boise Greenbelt, Ann Morrison Park, Kristin Armstrong Municipal Park and Heron Park. Marathon covers the half marathon route twice.

Race character

Scenery

Riverside
Parkland
City
Waterfront
Forest

Elevation character: Gently Rolling
Technicality: Non Technical

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.
Cut-off: Course closes at 2:00 PM; with an 8:00 AM marathon start this is a 6-hour limit, after which hydration stations may be unsupported
Qualification status: Boston Marathon Qualifier on a USATF Certified course

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: Loop
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
Marathon covers the half marathon route twice
half marathon heads west (downstream) from the start along the Boise Greenbelt to a turnaround near Wylie Lane, then returns eastbound

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.

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What runners ask first

City of Trees Marathon route map

How hilly is the City of Trees Marathon?

The City of Trees Marathon is described as gently rolling.

Where does the City of Trees Marathon route go?

Underfoot, expect paved. It passes Boise River, Boise Greenbelt, Ann Morrison Park, Kristin Armstrong Municipal Park and Heron Park. Marathon covers the half marathon route twice.

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.
Cut-off: Course closes at 2:00 PM; with an 8:00 AM marathon start this is a 6-hour limit, after which hydration stations may be unsupported
Qualification status: Boston Marathon Qualifier on a USATF Certified course

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: Loop
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
Marathon covers the half marathon route twice
half marathon heads west (downstream) from the start along the Boise Greenbelt to a turnaround near Wylie Lane, then returns eastbound

City of Trees Marathon

City of Trees Marathon at a glance

What runners ask first

City of Trees Marathon route map

How hilly is the City of Trees Marathon?

Where does the City of Trees Marathon route go?

Race character

Scenery

Entry, logistics and records

Entry requirements

Race day logistics

Course facts

What are typical race-day conditions?

How we calculated this

City of Trees Marathon

City of Trees Marathon at a glance

What runners ask first

City of Trees Marathon route map

How hilly is the City of Trees Marathon?

Where does the City of Trees Marathon route go?

Race character

Scenery

Entry, logistics and records

Entry requirements

Race day logistics

Course facts

What are typical race-day conditions?

How we calculated this

City of Trees Marathon at a glance

What runners ask first

City of Trees Marathon route map

How hilly is the City of Trees Marathon?

Where does the City of Trees Marathon route go?

Race character

Scenery

Entry, logistics and records

Entry requirements

Race day logistics

Course facts

What are typical race-day conditions?

How we calculated this

Related mapped-route collections

Marathon route maps

Marathon route maps in Idaho

Riverside marathon route maps

Parkland marathon route maps

City of Trees Marathon at a glance

What runners ask first

City of Trees Marathon route map

How hilly is the City of Trees Marathon?

Where does the City of Trees Marathon route go?

Race character

Scenery

Entry, logistics and records

Entry requirements

Race day logistics

Course facts

What are typical race-day conditions?

How we calculated this

Related mapped-route collections

Marathon route maps

Marathon route maps in Idaho

Riverside marathon route maps

Parkland marathon route maps