September Ultras within 500 miles of Riverside, CA
Flagstaff, AZ
Tour de Flagstaff
Sep 2, 2023
Flagstaff to Grand Canyon Stagecoach Line 100 Mile, 55K & Relays
Sep 21, 2024
Flagstaff Sky Peaks Mountain Runs
Sep 28, 2024
Fountain Hills, AZ
Javelina Jangover Night Runs
Sep 21, 2024
Berkeley, CA
Berkeley Trail Adventure
Sep 14, 2024
San Jose, CA
South Hills Single Track Trail Run
Sep 14, 2024
Mt Umunhum to Quicksilver Point to Point
Sep 28, 2024
Woodside, CA
Crystal Springs
Sep 1, 2024
Silverado, CA
That's No Moon
Sep 28, 2024
Stockton, CA
Loop the Lake 5K
Sep 24, 2023
Auburn, CA
Sunset & Cider Trail Races
Sep 28, 2024
Clayton, CA
Diablo Trail Run
Sep 8, 2024
Rocklin, CA
Mile Madness Endurance Run
Sep 20, 2024
Castro Valley, CA
Dick Collins Firetrails
Sep 29, 2024
Pine, AZ
Mogollon Monster 100
Sep 7, 2024
Polacca, AZ
Paatuwaqatsi Run
Sep 14, 2024
Kanab, UT
Grand to Grand Ultra
Sep 22, 2024
Richfield, UT
Crimson Canyons Ultra
Sep 21, 2024
Lakeshore, CA
China Peak Running Festival
Sep 7, 2024
Arnold, CA
Arnold Rim Trail Endurance Runs
Sep 28, 2024
Pine Valley, CA
Noble Canyon 50K
Sep 14, 2024
Loma Mar, CA
Groves Trail Run
Sep 7, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. Crystal Springs
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Sep 1, 2024Sunday
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50K, 26.2M, 35K, 13.1M, 8K trail run | kids run
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Woodside, CA
352 miles point to pointSan Mateo County, CA
2. Tour de Flagstaff
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CancelledSep 2, 2023Saturday
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50M, 50K, 20M, 7M trail run
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Flagstaff, AZ
315 miles point to pointCoconino County, AZ
3. Way Too Cool 50K Endurance Run
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Sep 6, 2025Saturday
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50K, 17K run
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Cool, CA
390 miles point to pointEl Dorado County, CA
4. China Peak Running Festival
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Sep 7, 2024Saturday
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100K, 50K, 25K, 10K trail run
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Lakeshore, CA
245 miles point to pointFresno County, CA
5. Groves Trail Run
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Sep 7, 2024Saturday
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50K, 30K, 13.1M trail run
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Loma Mar, CA
346 miles point to pointSan Mateo County, CA
6. Mogollon Monster 100
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Sep 7, 2024Saturday
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100M, 105K, 35K trail run
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Pine, AZ
315 miles point to pointGila County, AZ
7. Diablo Trail Run
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Sep 8, 2024Sunday
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50K, 26.2M, 13.1M, 10M, 4M trail run | kids run
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Clayton, CA
365 miles point to pointContra Costa County, CA
8. Berkeley Trail Adventure
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Sep 14, 2024Saturday
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50K, 35K, 13.1M, 10K trail run
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Berkeley, CA
374 miles point to pointAlameda County, CA
9. Noble Canyon 50K
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Sep 14, 2024Saturday
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50K trail run
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Pine Valley, CA
92 miles point to pointSan Diego County, CA
10. Paatuwaqatsi Run
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Sep 14, 2024Saturday
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50K, 10M, 4M trail run
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Polacca, AZ
392 miles point to pointNavajo County, AZ
11. South Hills Single Track Trail Run
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Sep 14, 2024Saturday
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50K, 26.2M, 16M, 13.1M, 9M, 10K, 5K trail run
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San Jose, CA
341 miles point to pointSanta Clara County, CA
12. Mile Madness Endurance Run
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Sep 20, 2024Friday
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72H, 48H, 24H, 100M trail run | kids run
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Rocklin, CA
391 miles point to pointPlacer County, CA
13. Crimson Canyons Ultra
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Sep 21, 2024Saturday
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50K, 25K, 10K trail run
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Richfield, UT
434 miles point to pointSevier County, UT
14. Flagstaff to Grand Canyon Stagecoach Line 100 Mile, 55K & Relays
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Sep 21, 2024Saturday
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100M, 55K trail run | 100M, 55K relay
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Flagstaff, AZ
315 miles point to pointCoconino County, AZ
15. Javelina Jangover Night Runs
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Sep 21, 2024Saturday
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75K, 50K, 25K, 15K, 7K trail run
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Fountain Hills, AZ
300 miles point to pointMaricopa County, AZ
16. Grand to Grand Ultra
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Sep 22, 2024Sunday
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160M run
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Kanab, UT
333 miles point to pointKane County, UT
17. Loop the Lake 5K
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Past DateSep 24, 2023Sunday
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555K, 1M run
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Stockton, CA
344 miles point to pointSan Joaquin County, CA
18. Arnold Rim Trail Endurance Runs
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Sep 28, 2024Saturday
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37M, 22M, 13.1M, 10K trail run
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Arnold, CA
335 miles point to pointCalaveras County, CA
19. Flagstaff Sky Peaks Mountain Runs
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Sep 28, 2024Saturday
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50M, 50K, 26K, 10K trail run
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Flagstaff, AZ
315 miles point to pointCoconino County, AZ
20. Mt Umunhum to Quicksilver Point to Point
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Sep 28, 2024Saturday
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50K, 26.2M, 25K trail run
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San Jose, CA
341 miles point to pointSanta Clara County, CA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.