Monsters & Mimosas 5K - Diamond Lake
- Date
- October 3, 2026
- Location
- Diamond Lake Resort, Diamond, OR
- Distance
- 5K · Sip & Stroll · Virtual 5K
From the Organizer
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!
Events
Weather
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
69°
Typical Low
35°
Based on US Climate Normals data from Malheur Refuge Hq, 23 mi from the venue.
Host City
About Diamond, OR
Elevation
4,685 ft
Nearest Airport
BOI
Boise Air Terminal/Gowen Field · 131 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Monsters & Mimosas 5K - Diamond Lake, put it on the calendar, and turn “someday” into a start date.
117
Days to train
- Race
- Monsters & Mimosas 5K - Diamond Lake
- Date
- October 3, 2026
- Location
- Diamond Lake Resort, Diamond, OR
Coming Up
More Running races near Diamond, OR
Old Fort Boise Days Fun Run
105 miles away
The Caldwell Classic
110 miles away
Pink and Blue Fun Run and Festival
114 miles away
MELBA FUN RUN
112 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Monsters & Mimosas 5K - Diamond Lake?
- Monsters & Mimosas 5K - Diamond Lake is a running race held in Diamond, Oregon on October 3, 2026. 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 Monsters & Mimosas 5K - Diamond Lake?
- Saturday, October 3, 2026 in Diamond, Oregon at Diamond Lake Resort, Diamond, OR. Check the event page for exact start times and wave schedules.
- How do I register for the Monsters & Mimosas 5K - Diamond Lake?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Monsters & Mimosas 5K - Diamond Lake
Oct 3, 2026