WTF – Course Information – 100 miles

Start Location & Time

The 100 mile event starts at 6am, Saturday 28th, 2019, from the front of Dwellingup Adventures (Newton St, Dwellingup – map here).   Dwellingup is an approximately 80min drive south from Perth CBD, and runners should aim to be at the start no later than 5.20am.

Bibs & Race Briefing

ibs will be available for collection, per email advice ahead of race. Generally:

  • in the days before the event from the event sponsor (Runningworks, located in Belmont),
  • from the “race headquarters”, Dwellingup Adventures, between 7-8.30pm on Friday night,
  • at the start line from 5.20am.

A race briefing will be given ten minutes before the race commences.


Runners and crew are encouraged to stay at the Dwellingup Caravan Park.  Some accommodation (bunk-bed style) is generally offered at the race HQ (Dwellingup Adventures) for those who have travelled from out-of-state. Contact the race director for more information.

100mi profile

Profile for the 100mi course. Click to enlarge.


An interactive map of the course, including the profile, and aid station locations can be viewed here. Please note that the aid station locations have changed slightly to what is shown on the linked map, and Dell Park Rd aid station has been removed. See the Aid station section below for more information.

You can download a GPX file for the entire course from here. Also available on MovesCount (for Suunto watches) and Garmin Connect (for Garmin watches).


  • The course is GPS measured at 161 km long (slightly over 100 miles).
  • There is approximately 3420m climb and descent
  • The 2017 event is a qualifier for UTMB – 6 points for the 100mi race.

Course Notes

The course predominantly follows the Munda Biddi Trail from Dwellingup to Jarrahdale and back. This is a mountain bike trail, though not heavily utilised, and there is rarely any conflict between runners and bike users.  The image on the right shows the trail markers — when the course changes direction, follow the direction of the arrow. Trail markers can be at waist level on on posts, or nailed to trees.

There are three significant deviations off the Munda Biddi trail:mundabiddi

  • at approximately 14.9km, the trail comes onto Scarpe Rd and heads right. Runners should instead turn left at this point and follow the signs and markers to the Oakley Dam aid station. Runners will then return along the same route, passing the point where they exited the trail, and then ~300m further along, turn right back onto the trail.
  • at approx 41.7km the trail comes out onto Whittakers Rd. The trail then goes right, but runners will be directed straight ahead onto a 3.7km “out and back” section (7.4km total). Follow Whittakers road until it hits a bitumen road (Dell Park Rd), just after a steep descent down “goldmine hill”. Turn around at this point and return to the volunteers who will direct you back onto the trail.  There will be a mini-aid station at this point (water only) with volunteers sending runners in the correct direction. Do not follow this deviation on the return leg!
  • on the return leg, at approx 143.7km, after running along Scarp Rd for several hundred meters, the Munda Biddi trail resumes to the left. Runners should remain on Scarpe Rd at this point and follow the signs and markers to the Oakley Dam aid station.   Runners will then return along the same route and turn right onto the trail at the 146.5km point.

Aid Stations

All aid stations will supply at a minimum water, Hammer Endurolytes, Gels, Fizz and Heed. Other food options may be available as well.

Aid stations are located at 16.3km, 41.7km, 48.9km, 54.5km, 70.5km, 84.4km, 98.3km, 114.3km, 122.9km & 144.9km:


Please note the following changes in 2016:

  • The Dell Park Rd aid station has been removed,
  • The “out ‘n’ back” aid pop-up aid station is now a full aid station, including drop bags. This will move approx 1km south, to Whittakers Rd, for the return leg
  • The North Dandalup Dam aid station is approx 400m north of the former car-park location.
  • The longest leg has increased from 19.9km to 25.4km

Runners can leave drop bags for all aid stations – there will be tubs for this available the night before (caravan park) and at the start line. There are toilets at the start line, at Nth Dandalup Dam car park (500m from aid station) and at the Oakley Dam aid station.

Drop Bags

100 Mile Runners will be able to drop off supplies for the aid stations. There will be tubs for this available the night before at Dwellingup Adventures (from 7pm-8.30pm) and in the morning before the race commences.

Ensure that your drop bags are labelled clearly with your name, race number, and the name of the aid station (Oakley Dam, Out’n’Back/Whittakers, Nth Dandalup Dam, Kingsbury Rd & Jarrahdale). Use one set of drop bags only for the Out’n’Back/Whittakers Rd aid station – drop bags will be relocated for the return leg.


Outside Support and Pacing

Support can only be provided at the listed aid stations – your own support crew can provide unlimited assistance at each of the aid stations, however we request no assistance outside of the aid stations in fairness to those without a crew.

Pacing is permitted from the half-way point (50mi). Runners may use one or multiple pacers, but only one at a time.  Pacers are discouraged from “muling” (aka carrying supplies for the runner).

Mandatory Gear

It is a requirement that all runners carry a mobile phone throughout the race. Please be aware that reception is very patchy if not with the Telstra network.

Weather conditions can be variable at this time of year. Runners should bring gloves, a beanie, running tights or thermals and a jacket for night time and possible wet weather running. Runners will need to carry adequate nutrition supplies between aid stations.

There are long sections where runners will need to be self-sufficient between drink stations. This will mean runners will require at least 1 litre of water to be carried between aid stations. Slower runners will require more.

All runners will need to use a torch overnight, and should plan to collect the torch from a suitable aid station.

Bibs must be clearly visible at all times.

Entry Requirements

100 miles is a fairly long way so runners should have completed 100K in an official event previously before entering. Other endurance events such as a previous WTF 50 finish, Comrades and Ironman Triathlon will be given consideration as qualifiers. If in doubt, please contact the race directory before entering.


Visit the registration page here to enter (and to view a list of competitors).

WTF 100mi Buckle (sub 24h finish)

WTF 100mi Buckle (sub 24h finish)

Finshers medal and presentations

All finishers will receive a WTF finishers medal. Those finishing in under 24h will receive a commemorative belt buckle.

Presentations will be held at the finish line (Dwellingup Adventures) at around noon on Sunday.



100mi course and profile

100mi course and profile