Fountain Hills, AZ, United States · Saturday, December 5, 2026
McDowell Mountain Frenzy 50 km
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, December
Regional 2001-2020 average for December — NASA POWER, grid elevation 495 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 179 | Gregory Close · 03:40:28 | Natalie Sandoval · 03:57:06 |
| 2024 | 50km | 199 | Justin Grunewald · 03:33:19 | Devon Yanko · 04:14:35 |
| 2023 | 50km | 129 | Chris Myers · 03:30:05 | Kristina Mascarenas · 04:10:20 |
| 2022 | 50km | 140 | Chris Myers · 03:21:15 | Rachel Lemcke · 04:35:29 |
| 2021 | 50km | 164 | Caleb Olson · 03:36:20 | Brianna Grigsby · 04:29:23 |
| 2020 | 50km | 174 | Andrew Belus · 03:36:49 | Elizabeth Lyles · 04:10:19 |
| 2019 | 50km | 164 | Andrew Belus · 03:38:00 | Michelle Hawk · 04:45:12 |
| 2018 | 50km | 154 | Arthur DeGraw · 03:44:53 | Lauren Coury · 04:06:14 |
| 2017 | 50km | 138 | Charlie Ware · 03:37:29 | Erin Kennedy · 04:50:40 |
| 2016 | 50km | 90 | Phil Slama · 04:12:18 | Lauren Besenfelder Coury · 04:18:38 |
The field shrank 10% between 2024 (199) and 2025 (179). 35% of the 2025 field were women.
DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.