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Doomsday

calendar_today 12 Dec, 2026

directions_run Running

sell $112.00 – $142.00

Doomsday

About the Event

LIVE Tracking and Real Time Race Results by UltraLive.net

For the 50K: https://www.ultralive.net/dd50k#tracking/info For the Half Marathon: https://www.ultralive.net/dd13#tracking/info

Do you have what it takes to survive Doomsday?

Close out 2026 with a bang and race your 50K or Half Marathon on a beautifully scenic race course. Generous 9.5-hour cutoff for the 50K and 5-hour cutoff for the Half Marathon, so hikers are welcome and trekking poles are allowed. High-quality finisher's medals and race shirts. Thrilling surprises along the race course. Limit 200 runners total.

Parking

Parking fees are NOT included in your registration. Please display your Golden Poppy Pass or purchase a day use pass $10 (exact cash) as you enter the parking lot. Volunteers will direct you to park in the Day Use Lot or overflow parking on Haul Road. Arrive early for the best parking spots.

Cut-off times

50K 9.5 hours at the finish line with a mandatory intermediate cutoff time at Robie Point Aid Station at 2:15pm Half Marathon 5 hours Each course is hiker, back-of-the-pack friendly.

Packet Pick-up

Early Packet Pick-up is on Friday, December 11th 3-7pm at Auburn CrossFit 858 High Street, Auburn, CA 95603. Race Morning Packet Pick-up is Saturday, December 12th 5:45am to 7:30am at the Race Start (Cool Staging Area).

Elevation and Course Maps

50K is 5,100 feet gain/loss. Strava link: https://www.strava.com/activities/12968296356 View online: https://footpathapp.com/routes/doomsday-50k/1F003BBB-B507-471A-A310-E7505F243587?s=460886 Half Marathon is 1,250 feet gain/loss. Strava link: https://www.strava.com/activities/9996908151 View online: https://footpathapp.com/routes/doomsday-half-marathon/87182167-EA1F-44C5-A3DD-6F1DFDC2FFA7?s=460835 Doomsday 50K Alltrails Link Doomsday Half Marathon Alltrails Link

ultraPacer

Our new sponsor, ultraPacer has brought you detailed maps and GPX files to help you strategize your race performance. https://ultrapacer.com/r/doomsday/50k https://ultrapacer.com/r/doomsday/half

Aid Stations

50K Mile 8.88 Knickerbocker Terror Mile 13.9 The Dissent of the Descending Mile 21.2 No Hands Horror Mile 23.1 Robie Point Resurrection Mile 27.8 No Hands Horror Half Marathon (only one aid station) Mile 8.88 Knickerbocker Terror

Swag and Awards

Every participant receives a race event shirt with killer race graphic. Every finisher earns a high-quality, weighted finisher's medallion. Top-three women and top-three men of each distance will receive custom three-dimensional trophies with race logo.

Races Offered

50K

Dec 12, 2026

straighten

Distance — 50K

terrain

Type — Running

timer

07:30

sell

$142.00

Half Marathon

Dec 12, 2026

straighten

Distance — 21.1K

terrain

Type — Running

timer

07:30

sell

$112.00

Weather History

These values represent the 3-year monthly averages for December in Cool.

thermostat Temperature
4.4° / 13.8°
wb_sunny Feels like
1.1° / 11.5°
light_mode Avg sunshine hours
6h 14m
water_drop Avg rainfall
7.2 mm
ac_unit Avg snowfall
air Avg wind speed
8.3 km/h (Light breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Low (2.0)
humidity_mid Humidity
80.4%
wb_twilight Sunrise
08:14
nightlight Sunset
17:44

About Cool

Learn more about the host city, Cool.

Scenic view of

Cool, formerly known as Cave Valley, is a small town in El Dorado County, California, United States, approximately 40 miles (64 km) from Sacramento, the state capital. Cool is at an elevation of 1,532 feet.

Read more launch

Hotels & Places to Stay

Race Results

All-time top performances and historical records for Doomsday.

Place Name Year Time
🥇 Sylvie Abel '25 4:37:52
🥈 Emily Renner '25 4:52:59
🥉 Marie VanZandt '25 5:09:16
4 Jessica Massey '25 5:57:11
5 Nicolette Del Sarto '23 6:03:02

Runner Reviews

Read what other athletes have to say about their experience at the Doomsday.

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