Monsters & Mimosas 5K - Diamond Lake Logo

Monsters & Mimosas 5K - Diamond Lake

Sat, Oct 2, 2027
In 328 days
Diamond Lake, OR
Diamond Lake Resort
52–75°F, cloudy
1% chance of rain, wind up to 10 mph

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 →

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About this race

Get ready for a spooky-good time at the Monsters & Mimosas 5K, where Halloween fun meets festive celebration! This spirited run invites ghosts, goblins, and costumed creatures of all kinds to hit the course for a frightfully fantastic fall morning.

Join us at Diamond Lake Resort where all race participants will receive a custom finisher medal, a race-themed shirt, and a refreshing mimosa waiting for them at the finish line—because even monsters deserve a little sparkle after a solid run! We'll have juice and water for those under 21.

We’ll also be recognizing top finishers with awards in the usual five-year age groups starting at 10 & under, giving everyone a chance to show off their speed along with their costumes.

Join us for miles, mimosas, and a whole lot of Halloween magic!

Course map

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