In 105 days · Sat, Dec 5, 2026
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When
Saturday, December 5th, 2026
Where
733 S Pioneer St, Boise ID
Distance
5K
Typical weather
26–41°F · some rain risk
See last 10 years
On this date: rain 1 of the last 10 years
2025
33–41°F
rain
2024
24–35°F
dry
2023
42–56°F
dry
2022
23–36°F
dry
2021
29–47°F
dry
2020
18–40°F
dry
2019
28–42°F
dry
2018
11–29°F
dry
2017
23–38°F
dry
2016
22–34°F
dry
Best months to race in Idaho →
About this race
Event Overview
- Event Name: Idaho’s Ugliest Sweater Run
- Date: 2026-12-05
- Location: 733 S Pioneer St, Boise, ID
- Registration Link: Register Here
Race Highlights
- Themed Course: A 12 Days of Christmas–themed course featuring hilarious and joy-filled stations every quarter mile.
- Fun Challenges: Experience activities like an eggnog chugging challenge and a fruitcake eating contest.
- Ugly Sweater Contest: Hosted for both humans and dogs—bring your best (or worst) holiday sweater!
- Holiday Spirit: Enjoy nonstop holiday cheer and laughter throughout the race.
Post-Race Celebration
- Finish Line Excitement: Cross the finish line to a magical burst of falling snow, perfect for memorable photos.
- Photos with Santa: Participants can cozy up with Santa Claus.
- Face Painting: Mrs. Claus will provide extra sparkle with face painting for kids and kids-at-heart.
- Community Celebration: A full-on Christmas celebration for families, friends, runners, walkers, and holiday lovers.
Course map
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