In 10 days · Sat, Oct 3, 2026
Don't let race day sneak up
One email during race week. That's it.
When
Saturday, October 3rd, 2026
Where
Diamond Lake Resort, Diamond Lake OR
Distance
5K
Typical weather
38–58°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2025
35–49°F
dry
2024
41–73°F
dry
2023
40–53°F
rain
2022
47–71°F
dry
2021
44–68°F
dry
2020
46–73°F
dry
2019
31–41°F
dry
2018
44–56°F
rain
2017
28–49°F
dry
2016
30–43°F
rain
Best months to race in Oregon →
Race-day forecast · Saturday, Oct 3
Cloudy · 40–68°F
Saturday, Oct 3starts near 40°F · 9% chance of rain · wind up to 6 mph
About this race
Race Overview
- Event: Monsters & Mimosas 5K
- Date: October 3, 2026
- Location: Diamond Lake Resort, Diamond Lake, OR
- Registration: Sign Up Here
Race Experience
- Theme: Get ready for a spooky-good time where Halloween fun meets festive celebration!
- Participants: Open to ghosts, goblins, and costumed creatures of all kinds.
- Custom Gear: All race participants will receive a custom finisher medal and a race-themed shirt.
- Mimosas: A refreshing mimosa waiting for you at the finish line, with juice and water for those under 21.
Awards
- Recognition: Top finishers will be awarded in five-year age groups starting at 10 & under.
- Categories: Awards will recognize both speed and costume creativity.
- Motivation: Everyone will get a chance to show off their speed along with their costumes.
- Fun: Celebrate your achievements with fellow participants!
Join Us!
- Invite: Join us for miles, mimosas, and a whole lot of Halloween magic!
- Atmosphere: Experience a frightfully fantastic fall morning.
- Community: Connect with fellow runners and celebrate the Halloween spirit.
- Enjoy: Embrace the fun and festivities of the season!
Course map
Hotels for race weekend
Live prices near the start line, Oct 2 – 4, 2026.
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