Ultra Running Hub Collie, WA, Australia · Saturday, September 19, 2026
Collie River Ultra 100km
Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.
What the course asks
DUV results for the 2025 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, September
Regional 2001-2020 average for September — NASA POWER, grid elevation 257 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 100km | 21 | Graydon Wilson · 11:14:17 | Kirsten Buist · 13:07:03 |
| 2023 | 100km | 41 | Simon Bennett · 10:36:47 | Nancy Shaw · 11:32:04 |
The field shrank 49% between 2023 (41) and 2025 (21). 19% of the 2025 field were women.
DUV results for the 2025 edition (100km) — 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.
For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 100 km of trail.
- Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Flask capacity for 100 km, without the bounce.
- Headlamps 100 km almost certainly means running into the night.
- Accessories Chafe and blisters end more 100 km races than fitness does.
Similar races
Other 100K trail ultras, closest in distance first.