Collie River Ultra
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Race Schedule
| Distance | Date | Start Time |
|---|---|---|
| 100km | Sat, 19 Sep | 06:00 |
| 80km Relay | Sat, 19 Sep | 08:00 |
| 50km | Sat, 19 Sep | 09:30 |
| 25km | Sat, 19 Sep | TBA |
Event Details
About This Event
Epic trail ultra through Collie's world-class adventure trails. Choose 100km solo, 50km solo, or team up for the 80km relay across jarrah forests, granite outcrops and the stunning Collie River Valley.
Course Description
The Collie River Ultra traces the Wiilman Bilya Trail and surrounding bushland through some of Western Australia's finest trail running terrain. Runners navigate dense jarrah, marri and yarri forests, cross timber bridges over creeks, scramble across granite outcrops, and are rewarded with sweeping views of the Collie River Valley and the iconic Wellington Dam — home to one of the largest dam murals in the Southern Hemisphere. The course starts at Collie Cemetery and finishes at Collie Golf Club, with multiple staffed transition points offering drop bags and aid station support. The trails wind through $10 million worth of purpose-built adventure infrastructure, making this one of the best-supported ultra courses in the South West.
Quick Facts
Getting There
Collie is approximately 200km south-east of Perth via the South Western Highway, around a 2-hour drive. The race start is at Collie Cemetery, with bus transfers provided from Collie Golf Club for 100km runners (buses depart 5:00 AM, 5:15 AM, and 5:30 AM). Spectators should follow the official course map for parking at each transition point. Arrive early to allow time for gear check and bus boarding.
Weather & What to Pack
September in Collie marks the tail end of winter, with cool to mild conditions ideal for trail running. Expect morning temperatures of around 6–10°C at the 6:00 AM start, rising to 16–20°C by mid-afternoon. Light rain is possible, making trails potentially muddy in sections. Spring wildflowers are at their peak. Dress in moisture-wicking layers, carry a lightweight jacket for early hours, and stay on top of hydration despite the cool temperatures.
Frequently Asked Questions
Can I enter the 100km as a team?
Yes — the 80km Relay is designed for teams of 2–5 runners who share the course between them. Solo entries are available for the 100km and 50km distances. The relay starts at 8:00 AM, between the solo 100km (6:00 AM) and solo 50km (9:30 AM) waves.
What drop bag support is available?
Solo 100km runners can access drop bags at six transition points: 12.4km, 26.0km, 46.5km, 64.1km, 73.9km, and 93.5km. Solo 50km runners have drop bag access at 20.5km and 38.1km. Bags must be a maximum 30cm × 30cm (ziplock freezer bag size) and labelled with your name and bib number.
How do 100km runners get to the start line?
Bus transfers are provided from Collie Golf Club to the Collie Cemetery start line. Buses depart at 5:00 AM, 5:15 AM, and 5:30 AM. Runners needing to register or drop off gear should catch the first or second bus to allow enough time before the 6:00 AM start.
Is there a cut-off time for the 100km?
Yes — the last finisher for the CRU100 is expected by 11:43 PM, giving solo 100km runners approximately 17 hours and 43 minutes. The CRU50 cut-off is 8:06 PM and the relay cut-off is 9:13 PM. Additionally, 100km runners have the option to drop to an 80km finish on the final leg if needed.
What aid station facilities are available on course?
All events are fully supported by Perth Trail Series crew with multiple staffed aid stations stocked with food, water, and medical support. The course is well-marked and marshalled throughout. Facilities including toilets, showers, and coffee vans are available at key transition points — check the official course map for exact locations.
Last updated: 14 April 2026
