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Ultramarathon Events

Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. In California, there are a couple of city-based ultramarathons, but most ultras make the most of the Golden State's stunning scenery and landscapes, such as its coastlines, National Parks, mountains, and deserts. With ultra races taking such a long time complete, these views provide a welcome distraction for runners. The Western States 100-mile Endurance Race is known as one of the most beautiful events, and for the truly fearless, the Badwater Ultramarathon travels a distance of 135 miles through Death Valley.

38events found
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Lake Sonoma

Friday 12 Apr 2024

1. Lake Sonoma

Location

Geyserville, California

Running

half marathon, ultramarathon, marathon

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KILIMANJARO TRAIL RUN

Friday 30 Aug 2024

2. KILIMANJARO TRAIL RUN

Location

Corona, California

Running

ultramarathon, marathon, half marathon, 10k

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Lake Hodges Trail Festival

Saturday 19 Oct 2024

3. Lake Hodges Trail Festival

Location

San Diego, California

Running

ultramarathon, 5k and more

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Miwok 100K

Saturday 4 May 2024

4. Miwok 100K

Location

Stinson Beach, California

Running

ultramarathon

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Hollywood to the Sea

Saturday 4 May 2024

5. Hollywood to the Sea

Location

Los Angeles, California

Running

ultramarathon

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Extraterrestrial Full Moon Midnight

Saturday 17 Aug 2024

6. Extraterrestrial Full Moon Midnight

Location

Nevada, Nevada

Running

5k, 10k, half marathon, marathon, ultramarathon

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Avalon Benefit 50 Mile/50K Run

Saturday 11 Jan 2025

7. Avalon Benefit 50 Mile/50K Run

Location

Avalon, California

Running

ultramarathon

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Redwood (Spring) Trail Run

Saturday 30 Mar 2024

8. Redwood (Spring) Trail Run

Location

Oakland, California

Running

half marathon, marathon, ultramarathon, 5k and more

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Finish The Ride and Finish The Run Griffith Park

Saturday 6 Apr 2024

9. Finish The Ride and Finish The Run Griffith Park

Location

Los Angeles, California

Running

5k, 10k, half marathon, ultramarathon and more

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American River 50

Saturday 6 Apr 2024

10. American River 50

Location

Folsom, California

Running

ultramarathon, 10 miles and more

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SPASM Lake Chabot Trail Run

Saturday 13 Apr 2024

11. SPASM Lake Chabot Trail Run

Location

Castro Valley, California

Running

half marathon, marathon, ultramarathon and more

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G-Bar Ranch Ultra & Trail 1/2 Marathon

Saturday 20 Apr 2024

12. G-Bar Ranch Ultra & Trail 1/2 Marathon

Location

Mariposa, California

Running

ultramarathon and more

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Silver Moon Race: Kings River

Saturday 20 Apr 2024

13. Silver Moon Race: Kings River

Location

Reedley, California

Running

ultramarathon, 10k

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Horseshoe Lake Trail Run

Sunday 21 Apr 2024

14. Horseshoe Lake Trail Run

Location

La Honda, California

Running

half marathon, marathon, ultramarathon and more

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Grizzly Peak Trail Run

Saturday 11 May 2024

15. Grizzly Peak Trail Run

Location

Berkeley, California

Running

10k, half marathon, marathon, ultramarathon and more

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San Francisco 50mi/50K Endurance Run - DISCONTINUED

Saturday 18 May 2024

16. San Francisco 50mi/50K Endurance Run - DISCONTINUED

Location

Marin County, California

Running

ultramarathon and more

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Eastern Sierra Double Century

Saturday 1 Jun 2024

17. Eastern Sierra Double Century

Location

Bishop, California

Running

ultramarathon

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Cinderella Trail Run

Sunday 9 Jun 2024

18. Cinderella Trail Run

Location

Oakland, California

Running

half marathon, marathon, ultramarathon and more

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Running with the Devil 5K, 10K, 1/2 Marathon, Marathon, and 50K

Saturday 29 Jun 2024

19. Running with the Devil 5K, 10K, 1/2 Marathon, Marathon, and 50K

Location

Clark County, Nevada

Running

5k, 10k, half marathon, marathon, ultramarathon

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Tiny Tickers Trot 5K Run/Walk

Sunday 30 Jun 2024

20. Tiny Tickers Trot 5K Run/Walk

Location

Chico, California

Running

ultramarathon

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San Lorenzo River Trail Run

Saturday 13 Jul 2024

21. San Lorenzo River Trail Run

Location

Santa Cruz, California

Running

half marathon, marathon, ultramarathon and more

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Salt Point Trail Run & Camping Experience

Saturday 13 Jul 2024

22. Salt Point Trail Run & Camping Experience

Location

Jenner, California

Running

ultramarathon and more

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Redwood (Summer) Trail Run

Saturday 10 Aug 2024

23. Redwood (Summer) Trail Run

Location

Oakland, California

Running

half marathon, marathon, ultramarathon and more

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Headlands

Saturday 10 Aug 2024

24. Headlands

Location

Mill Valley, California

Running

ultramarathon, marathon

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Rodeo Beach Trail Run

Saturday 10 Aug 2024

25. Rodeo Beach Trail Run

Location

Sausalito, California

Running

ultramarathon and more

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Crystal Springs (Summer) Trail Run

Sunday 1 Sept 2024

26. Crystal Springs (Summer) Trail Run

Location

Woodside, California

Running

10k, half marathon, marathon, ultramarathon and more

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The Groves Trail Run

Saturday 7 Sept 2024

27. The Groves Trail Run

Location

Loma Mar, California

Running

ultramarathon and more

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Diablo Trail Run

Sunday 8 Sept 2024

28. Diablo Trail Run

Location

Walnut Creek, California

Running

10 miles, half marathon, marathon, ultramarathon and more

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Arnold Rim Trail Endurance Runs

Saturday 28 Sept 2024

29. Arnold Rim Trail Endurance Runs

Location

Arnold, California

Running

ultramarathon, half marathon and more

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Spooner's Cove Trail Run

Sunday 6 Oct 2024

30. Spooner's Cove Trail Run

Location

San Luis Obispo County, California

Running

ultramarathon and more

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Bizz Johnson

Saturday 12 Oct 2024

31. Bizz Johnson

Location

Susanville, California

Running

ultramarathon, marathon, half marathon, 10k

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Ruth Anderson Memorial Endurance Run

Saturday 12 Oct 2024

32. Ruth Anderson Memorial Endurance Run

Location

San Francisco, California

Running

ultramarathon

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Rio Del Lago 100 Mile + 50K Endurance Runs

Saturday 2 Nov 2024

33. Rio Del Lago 100 Mile + 50K Endurance Runs

Location

Granite Bay, California

Running

ultramarathon

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Southwest Series - Day 5 (NV)

Thursday 14 Nov 2024

34. Southwest Series - Day 5 (NV)

Location

Laughlin, Nevada

Running

marathon, half marathon, 5k, 10k, ultramarathon

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Southwest Series - Day 6 (CA)

Friday 15 Nov 2024

35. Southwest Series - Day 6 (CA)

Location

Baker, California

Running

marathon, half marathon, 5k, 10k, ultramarathon

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San Joaquin River Trail 25k/50k/100k

Saturday 7 Dec 2024

36. San Joaquin River Trail 25k/50k/100k

Location

Friant, California

Running

ultramarathon and more

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San Diego 50 & Trail Runs

Saturday 11 Jan 2025

37. San Diego 50 & Trail Runs

Location

Escondido, California

Running

ultramarathon, marathon, half marathon, 10 miles, 5k and more

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Way Too Cool 50K & 17K

Saturday 6 Sept 2025

38. Way Too Cool 50K & 17K

Location

El Dorado County, California

Running

ultramarathon and more

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Showing 1 - 38 of 38 events
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