Monsters & Mimosas 5K - Diamond Lake

Name: Monsters & Mimosas 5K - Diamond Lake
Start: 2026-10-03
End: 2026-10-03
Location: Diamond, Oregon

location_on

Diamond, Oregon, United States

calendar_today 03 Oct, 2026

directions_run Running

language Official Website

sell $25

About the Event

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!

Races Offered

5K

Oct 03, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

10:00

sell

$25.00

Sip & Stroll

Oct 03, 2026

straighten

Distance — Sip & Stroll

terrain

Type — Running

timer

10:00

sell

$25.00

Virtual 5K

Oct 03, 2026

straighten

Distance — 5K

terrain

Type — Running

timer

10:00

sell

$25.00

Weather Overview

These values represent the 3-year monthly averages for October in Diamond.

Temp (°C)

Feels Like (°C)

thermostat 5.5° / 16.7°

wb_sunny 1.8° / 12.7°

Wind (km/h)

Humidity (%)

air 10.0 /

water_drop 54.0%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 5.5° / 16.7°

wb_sunny 1.8° / 12.7°

air 10.0 km/h

water_drop 54.0%

About Diamond

Diamond is an unincorporated community in Harney County, Oregon, United States. Diamond is west of Oregon Route 205 and south of Malheur Lake, 52 miles (84 km) south-southeast of Burns by highway. Its post office is assigned ZIP code 97722.