You Yangs Off-road

The Dirty Duathlon is part of YOU YANGS OFF ROAD which also includes the Trailblazer Trail Runs. Click HERE to Find out more about the Trail Runs.

EVENT DATE:   To be confirmed

Short Course - 3km Run / 14km Mountain Bike Ride (approx) / 3km Run 

Long Course -  7km Run / 28km Mountain Bike Ride (approx) / 7km Run.

Both distances can be completed individually or part of a 2 person team


Long Course  -  9:00am

Short Course -  9:15am

VENUE:    You Yangs Regional Park.  (Event site is just inside the main entrance gate off Branch Rd)

FIELD LIMIT: 200 individual participants & 30 teams


Get a team of two together and complete the course as part of a relay team. One team member completes both the first and second run and the the second team member completes the mountain bike leg. 


This years Long Course Duathlon will be the Triathlon Victoria Off-Road Cross Triathlon Titles and part of the Triathlon Victoria Series. In order to be eligable you must be a Triathlon Australia. Member.  5 year age groups will be used for the Victorian State titles.


Mountain bikes are the only bikes allowed on course. This is to ensure the safety of all participants and ensure a fair event for all competitors. E-Mountain bikes are allowed but participants using these will not be eligable for category or overall prizes, they will be placed into a separate category.


Personalised your race bib with your name, nickname or message. This feature will be available for all participants who register before August 1.


Caps are available for sale through the online registration process for just $25. All caps can be collected at packet pick up on race day.


The following cut off times will apply:

Participants must complete run 1 by 10:00am

Participants must have completed the bike leg before 12:00 noon

Participants must complete the course before 1:00pm


On September 14 the super prize draw evening will take place. Over $1000 worth of prizes will be given away including 4 pair of ON Trainers. All you need to do to be in the draw is have registered before September 14. 


Race Packs, including race bib, MTB plates, timing chips, pins, cable ties and instruction sheets will NOT be posted out.

They will be available for collection at the locations and times below:

To be confirmed


As you cross the finish line at the event you will receive a finishers medal. Relay teams will receive 2 medals (one for each team member)

Meet at 10am at the transition area on your bike Saturday September 23. We will do a one lap recon of the bike and run course easy. Then we will run 3 to 5kms easy on the run course.
Open and free to all racing & supervised by two great Geelong Performance Coaching coaches.


This event will be electronically chip timed. The following timing points will be recorded:

  • Entry to transition after run 1
  • Exit of Transition after MTB (Bike leg includes both transitions)
  • Finish Line

All results will be available live as you cross the finish line at this website on the RESULTS Tab.


Short course presentation will take place at approximately 11:15am

Long Course presentations well take place at approximatley 12:15pm


15 - 18 years, 19-29 years, 30-39 years, 40-49 years, 50-59 years, 60+ years

Note: Victorian State title awards (long course) will be calculated in 5 years age group categories.

Gold medals will be awarded to all individual age group category winners at both the short course and long course events. 

Trophies will be awarded to the overall male and female winners in both the long course and the short course events.

Trophies will be awarded to the overall winners of the relay (one only per distance).


The objective of this event is not to weigh you down with rules and regulations, however, to ensure your safety and the safety of other participants, there are some rules that must be followed. CLICK THE EVENT RULES TAB ABOVE to view event rules and regulations.


The You Yangs are located just 40 minutes drive from the Westgate Bridge and 20 minutes from Central Geelong

All events will take place at the same event site that is located just inside the main entrance gate on Branches Road.

 You yangs map for duo


There will be course marshals out on course at all major intersections and many course directional arrows and signs to ensure that you remain on the correct course. Although you may feel in the middle of the bush, you are rarely more than 50m from vehicle access. 


We hope that this service is not required, however we will have first aid available both at the finish line and a mobile unit out on course to ensure participant safety.


The transition area will open at 8:00am.  A Helmet and bike safety check will take place on entering the transition. Only participants are allowed in the Transition area. No Bags are to be kept in the Transition area.


Bag storage facilities will be available between 8:30am and 1:00pm. This bag storage area will be staffed at all times (with PB events staff only within the fenced area), however, please do not leave any valuable in your bags.


There will be one drink station on each of the two run courses. Both drink stations will be at approximately half way through the run leg.


We have been fortunate enough to obtain Parking on Private Property on Branches road near the event site. Please treat this property with respect and DO NOT wander through the property. Without the land owners allowing parking on this property, the event will not take place, so please be respectful.


Refunds will not be issued after September 1

Refunds can be issued to those who email BEFORE September 1. A $15 admin fee will apply.  







Prices to be confirmed closer to event date


All prices below are TOTAL prices paid and include GST and all processing charges.

For non-Triathlon Victoria members there will be an additional $5 Race Day Lisence fee. There will be no additional nasty suprises at the check out! 

FIELD LIMIT: 200 individual participants & 30 teams.

IMPORTANT INFORMATION (if Field limit is not reached)

  • Online Entries will close at 8pm, Friday September 13
  • Race day entries will be accepted on race day between 8:00am and 8:45am.
  • Race day entries are CASH or CARD.


Refunds will not be issued after September 1

Refunds can be issued to those who email BEFORE September 1. A $15 admin fee will apply.  


Run courses - single loop out and back courses. These courses are relatively flat.

Bike Courses - 14km course is a single lap of the yellow below and the 28km course is two (2) laps of the yellow course below. The course has NO large jumps or dropp offs and only has gradual inclines and declines. So achievable for all abilities.

Long Course Map (disregard date on clip

Long Course


Short Course (disregard date on clip)

short course


duathlon course map 2023

Our aim is not to weigh you down with countless rules and regulations, however there are a few that we need to highlight to ensure both your safety and the safety of other participants. Breaching any of these rules could result in disqualification.

The event will be following Triathlon Australia Rules. Please familiarize yourself with these rules by visiting the following site. 

Some major Guidelines and Rules are:

Transition Area

  • Only participants in the Duathlon can enter the transition area.
  • Participants must have their helmet on and strap done up on entering the transition to allow marshal to check for safety.
  • Competitors are ultimately responsible for their gear. Please give unwanted gear to family or friends or store it in the allocated Bag storage area provided.
  • Participants must rack their bikes and place their equipment at the allocated position in the transition.
  • Participants are not allowed to tie anything to their bike rack to make it easier to find their bike.
  • Participants must put on and fasten their helmets before they remove their bikes from the bike rack.
  • Participants must walk/run their bike in the transition area until they cross the road and pass the mount bike sign.
  • On return from the bike participants must dismount their bike at the dismount sign and walk/run their bike to their bike rack


  • Runners must obey the instructions of all event staff and course marshals at all times.
  • Runners must stay on the designated course (tracks) at all times, no cutting corners!
  • Race numbers/bibs must be displayed at all times
  • On the second run leg, runners are to keep to the left of the track at all times.


  • Riders must wear an approved ANA, SNELL, ANSI or Australian Standard approved helmet
  • Mountain bikes must be used in this event, no racing or triathlon bicycles.
  • Riders helmet strap must be fastened at all times while on bike.
  • Riders must obey the instructions of all event staff and course marshals
  • The mountain bike course will be clearly marked with arrows. If needing assistance while on course quote the number at the bottom of the sign and we will be able to locate you
  • PASSING: Front riders must yield to overtaking riders. Riders should voice the command ”passing on right" when overtaking another. 
    • It is the responsibility of the faster rider to overtake safely. Slower riders must yield to the passing rider on the first command. In the event two riders are racing for position, the leading rider does not have to yield his position to the challenging rider. However, a rider may not bodily interfere with or impede another rider's progress.  


  • The relay event will follow all the rules above with the addition of some specific rule to the event.
  • A velcro ankle strap with timing chip will act as the baton. This leg strap must be worn at all times when a competitor is on the course. 
  • Leg bands must only be removed in the transition area.


For 2023 Results, Click on the image below.

Results click here


For 2019 Dirty Duathlon Results, Click Below 

Results click here



For 2018 Dirty Duathlon Results, Click Below

Results click here



Tri adventures logoTriathlon Adventures Geelong is a triathlon squad and endurance sport training squad based in Geelong, with correspondence athletes around Australia and the world.

Triathlon Adventures Geelong is made up of athletes of all abilities who strive to be the best they can be, all while having fun in the great outdoors.

For further information regarding this program or training programs for triathlon, running, swimming or cycling please contact kate at:   0402 368 038 

Short course beginner program

Short C0urse Intermediate

Long Course beginner program

Long Course intermediate program

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