Boise Greenbelt Relays & 50 Mile Ultra logo

Boise Greenbelt Relays & 50 Mile Ultra

Boise Greenbelt Relays & 50 Mile Ultra is a running race on April 24, 2027 in Boise, ID, with entry fees from $75 to $240.

Date
April 24, 2027 (166 days to go)
Price
$75–$240
Sport
Running

From the Organizer

Boise Greenbelt Relays | Saturday, April 24, 2027

Run the entire Boise River Greenbelt with your friends at the Treasure Valley’s only relay race! This 45-mile loop starts and finishes at Ann Morrison Park and passes through Garden City, Eagle, and Southeast Boise. Going solo? Take on our 50-mile ultra, one of the fastest and flattest non-looped 50-milers in the Northwest.

Divisions

Solo (50 miles available to this option only)
Team of 2
Team of 4
Team of 6

Team of 7

Co-ed teams are welcome and compete in the same division.

How the Relay Work

The course has 7 legs of 5–8 miles and 6 exchange zones.
Your team decides who runs each leg, and runners can run multiple legs, including consecutive ones.
Teams must hand off their slap bracelet inside each exchange zone.
Every exchange zone has bathrooms, parking, and an aid station.

Registering a Team

All team members must be registered in one transaction. You’ll need your team name and each runner’s:

First and last name
Email address
Date of birth
Gender
Phone number
Address

Events

Solo (50 Mile Ultra Distance)$75
Two (2) Person Relay Team$140
Four (4) Person Relay Team$180
Six-Seven (6-7) Person Relay Team$240

Typical Conditions

It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.

Typical High

65°

Typical Low

41°

Chance of Rain

29%

Based on US Climate Normals data from Boise Air Terminal, 3 mi from the venue.

Sunrise 6:47 AMSunset 8:38 PMDaylight 13h 51m

About Boise, ID

Population

235,701

as of 2023

City Elevation

2,866 ft

Nearest Airport

BOI

Boise Air Terminal/Gowen Field · 1 mi

Time Zone

Mountain Time

From Endurance Grid

A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.

Race Location

What Are You
Waiting For?

Every finish line starts with a single decision. Claim your spot at Boise Greenbelt Relays & 50 Mile Ultra, put it on the calendar, and turn “someday” into a start date.

166

Days to train

Race
Boise Greenbelt Relays & 50 Mile Ultra
Date
April 24, 2027

Get Ready for Race Day

Plan your training, log every workout, and track your progress all the way to race day in the Endurance Grid app.

The training calendar in the Endurance Grid app: the week plan and every day colored by sport
A Race Story in the Endurance Grid app: the finish photo and everyone who finished

Frequently Asked Questions

What is the Boise Greenbelt Relays & 50 Mile Ultra?
Boise Greenbelt Relays & 50 Mile Ultra is a running race held in Boise, Idaho on April 24, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
When and where is the Boise Greenbelt Relays & 50 Mile Ultra?
Saturday, April 24, 2027 in Boise, Idaho at Ann Morrison Park. Check the event page for exact start times and wave schedules.
How do I register for the Boise Greenbelt Relays & 50 Mile Ultra?
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Boise Greenbelt Relays & 50 Mile Ultra

Apr 24, 2027

Register