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2025 CRU100

13 September, 2025 @ 6:00 am - 6:00 pm

A$87.00 - A$357.00
Epic Trail Running – Solo100km / Solo 50km / Relay 80km of up to 5! Something for everyone.

CRU100 / CRU50 / CRU Relay – Collie River Ultra Marathon!!!!

The Collie River Ultra Marathon gives you 100 kilometres of incredible trail running through one of the most adventurous regions of Australia – on a BRAND NEW purpose built hiking/running trail!!! It’s the best we’ve found, and we’re inviting you to see for yourself!

Complete the entire 100km SOLO and you’ll be amongst the first to take on this epic journey; or opt to Run 50km SOLO starting on the iconic Dam Wall; or gather your mates for a relay team of 2-5 runners spending quality time encouraging eachother and being part of a team.

All of these options have you amongst the first runners on this trail.

Course Location

Starting and finishing in the town of Collie – and The Wiilman Bilya Trail! A place for adventures! Not only is this perfect running trail, there’s loads for your support crew to do while you’re on trail! And there’s so many opportunites they can see you and cheer you on!

The 100km course, takes off on the main road in town, before making your way onto the sexy single trail! You’ll run along the stunning dam, over the dam wall, through beautiful bush! It’s all runnable, making it perfect if it’s your first 100km!

The 50km course, has you toeing off on the iconic dam wall! Seriously, you’re starting ontop of the largest dam wall mural in the southern hemisphere! Talk about instaworthy! The trail is just as epic too!

The 80km Relay course, CRU can also be completed by relay teams of up to 5 runners doing one or more legs each. With legs varying in length between 13km and 22km, the relay team categories put this event within the grasp of just about any runner who wants to experience the thrill of fresh air and scenic trails in Australia’s South West.

The Breakdown:

The 100km and Relay start at the same point. The 50km starts at Transition 2. All courses finish at the same point.

Halfway through the Final Leg, the 100km runners split off onto a different trail to collect a few more kms, before rejoining the Final Relay Leg to continue with the rest of the runners to the rewarding finish!

Full Service: This is a ‘full service’ event with all the customer service considerations you’d expect from an industry leader; such as busses to the start for CRU50 runners, well stocked checkpoints, a marked and marshalled course, and stop off points for spectators and support crews that allow them to take in the best of the landscape as well.

Terrain: Utilising large sections of the Brand New ‘Wiilman Bilya Trail’, the terrain underfoot is not overly technical and includes a range of trail types, from hard packed clay trails to soft dirt with plenty of weaving single track between. It is unfair to call the course ‘flat’ but with a total ascent / descent of 2000m the course is far from mountainous with long runnable sections that are a sheer delight to run along.

***PLEASE NOTE: FINAL DISTANCES WILL BE CONFIRMED IN YOUR RACE BRIEF INFORMATION, this is just to give you an idea for planning and will be close to the distances listed. ***

THE COURSE BREAKDOWN RELAY:

Leg 1: 12.4km / Leg 2: 13.6km / Leg 3: 20.5km / Leg 4: 17.6km / Leg 5: 12km

Relay Total : 76km +/-1600m

THE COURSE BREAKDOWN CRU50:

Leg 1: 20.5km / Leg 2: 17.6km / Leg 3: 12km

CRU50: 50km +/- 1,051m

THE COURSE BREAKDOWN CRU100:

Leg 1: 12.4km / Leg 2: 13.6km / Leg 3: 20.5km / Leg 4: 17.6km / Leg 5: 36km

For All CRU100 runners, Halfway into Leg 5 you’ll deviate from the rest of the pack and head off on a very special 20km trail loop, returning you back to the same spot you deviated from! This special loop is to be ***Accessed EVENT DAY ONLY!!!*** Before you hit this special trail, you’ll have a special top up station to check-in at, where friends and family can meet you.

CRU100: 100.6km +/- 2000m

CRU100 Cut-Offs:

Transition 1: 12.4km Last Runner Expected at: 8:23am

Transition 2: 26km Last Runner Expected at: 10:59am

Transition 3: 46.5km Last Runner Expected at: 2:55pm

Transition 4: 64.1km Last Runner Expected at: 6:17pm

CRU100 HARD CUT OFF: 73.7km *If you’re not here by 7pm, you’ll be directed to stay on final Leg and finish your race at 81.3km. This is based on consistently maintaining a 10:30min/km pace.

***PLEASE NOTE: FINAL DISTANCES WILL BE CONFIRMED IN YOUR RACE BRIEF INFORMATION, this is just to give you an idea for planning and will be close to the distances listed. ***

Last Runner Expected Finish

FINISH RELAY: 76km Last Runner Expected at: 9:13pm

FINISH CRU50: 50km Last Runner Expected at: 8:06pm

FINISH CRU100: 100.6km Last Runner Expected at: 11:43pm

If signing up in a group, and you have less than the maximum number of people, please just enter information twice the extra ticket. Thank you. –

You will receive an email 29 August asking for your team name and the final confirmation of team members.

Details

Date:
13 September, 2025
Time:
6:00 am - 6:00 pm
Cost:
A$87.00 - A$357.00
Website:
https://www.eventbrite.com.au/e/2025-cru100-tickets-952411537547

Venue

Collie
1
Collie, WA 6225 Australia