Ultra Running Hub Liberty Hill, TX, United States · Saturday, December 5, 2026
Mosaic 50km Trail Run
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 327 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 21 | Ian Smith · 05:12:00 | Regina Massingill · 05:06:32 |
| 2024 | 50km | 34 | Nathan Margason · 05:18:16 | Elena Berger · 05:36:42 |
| 2023 | 50km | 58 | Brandon Ray · 04:38:35 | Shannon Reever · 05:36:45 |
| 2022 | 50km | 30 | Luis Resendiz · 04:29:49 | Samantha Bradley · 05:25:33 |
| 2021 | 50km | 27 | Terence Palmer · 04:23:38 | Kate Motsko · 05:18:44 |
| 2020 | 50km | 35 | Gerardo Moreno · 04:41:14 | Regina Massingill · 05:19:45 |
| 2019 | 50km | 12 | Dave Gibson · 05:22:27 | Anna Felz · 05:42:40 |
The field shrank 38% between 2024 (34) and 2025 (21). 33% 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.
Course notes
- gear 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.