Ultra Running Hub Prescott, AZ, United States · Saturday, April 17, 2027
Fixed Distance 100K
Whiskey Basin 91 km Trail Run
213 days away
91 km Distance
not publishedn/a Climbing
4.6 est Grit · Challenging
Calculated from 91 km alone — the organiser has not published an elevation profile. Read 4.6 as a floor, not a verdict.
What the course asks
Time limit 16 hours
10:33 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. About average for a 100K. Measured against 208 races of the same distance. Cut-off calculator →
Field size ~92 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2026 edition (91km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, April
Daytime high 21°C
Night low 5°C
Rainfall Dry — rain unlikely
Daylight 13 h 05 m of light
Regional 2001-2020 average for April — NASA POWER, grid elevation 1493 m. Not a forecast.
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 91 km of trail.
- Trail Running Shoes91 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition91 km of self-supported fuelling between aid stations.
- Hydration VestsFlask capacity for 91 km, without the bounce.
- HeadlampsA 16 h limit puts you out there after dark.
- GPS WatchesBattery life first — a 91 km day outlasts most full-GPS modes.
Course Notes
Point to point endurance foot races will take place along the Prescott Circle Trail in beautiful Prescott, Arizona.
Similar races
Other 100K trail ultras, closest in distance first.