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Monsters & Mimosas 5K - Diamond Lake

calendar_today 03 Oct, 2026

directions_run Running

language Official Website

sell $25.00

Monsters & Mimosas 5K - Diamond Lake

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 History

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

thermostat Temperature
5.2° / 15.8°
wb_sunny Feels like
1.6° / 11.7°
light_mode Avg sunshine hours
9h 0m
water_drop Avg rainfall
1.0 mm
ac_unit Avg snowfall
0.1 cm
air Avg wind speed
10.0 km/h (Light breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (4.0)
humidity_mid Humidity
54.1%
wb_twilight Sunrise
07:09
nightlight Sunset
18:10

About Diamond

Learn more about the host city, Diamond.

Scenic view of

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.

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Hotels & Places to Stay

Things to Do Nearby

Tours and activities near Diamond, powered by Viator.

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Race Results

Official finishing times from previous editions of Monsters & Mimosas 5K - Diamond Lake.

Place Name Time
🥇 Brady Coy 23:36.99
🥈 Ross Pinard 25:14.37
🥉 Mike Morgan 27:28.82
4 KAITLIN Speer 28:02.71
5 Robert Yard 28:16.78

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