Point-to-point 50K on the Black Canyon National Recreation Trail from Mayer High School (Spring Valley, AZ) to Deep Canyon Ranch (Black Canyon City, AZ), run the day after the 100K on the same opening ~19.4 miles of trail. Not a Western States qualifier and carries no pacers.
Same opening trail as the 100K. The first ~20 miles are fast and downhill; the race advises saving energy for the final stretch after Bumble Bee Ranch aid station.
Point-to-point 100K and 50K ultramarathons on the Black Canyon National Recreation Trail through Arizona's Sonoran Desert, both starting at Mayer High School in Spring Valley, AZ. The 100K (Saturday) finishes at the Emery Henderson Trailhead near New River; the 50K (Sunday) finishes at Deep Canyon Ranch near Black Canyon City. Race directed by Aravaipa Running, presented by HOKA, and a Western States 100 Golden Ticket race.
First run in 2014. Originally paired the 100K with a 60K second distance; the second distance was later changed to a 50K (the site's own Course Records section separately lists a retired '60K (Old Course)' record, last set 2024). A 'High Water Reroute Course' record also exists from 2019, indicating the course has been altered at least once for high water on the Agua Fria/Black Canyon crossings. Became a Western States 100 Golden Ticket race and, per the race page and UltraSignup listing, joined the World Trail Majors collection.
| Mile | Station | Cutoff | Crew | Bag | Pacer | Med | To next |
|---|---|---|---|---|---|---|---|
| 0.00 | Start - Mayer High School | ? | ● | ● | ? | ? | 7.70 |
| 7.70 | Antelope Mesa | 9:45am | · | · | ? | ? | 5.20 |
| 12.90 | Hidden Treasure | 11:15am | · | · | ? | ? | 6.50 |
| 19.40 | Bumble Bee Ranch | 1:15pm | ● | · | ? | ? | 4.60 |
| 24.00 | Gloriana Mine | 3:00pm | · | · | ? | ? | 7.90 |
| 31.90 | Deep Canyon Ranch (Finish) | 6:00pm | ● | ● | ? | ? | ? |
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