SDU is not like the others.

We implement a rolling start to allow those who require more time to start earlier and place parameters on participants when it comes to self seeding.

Start waves will be every hour, on the hour, during the distance start window as outlined below.

• 160K Start time window is 2am to 8am Saturday (at the Birdsville Hotel) and must be through the Event Hub by 6pm Saturday

• 100K Start time window is 2pm to 10pm Saturday

• 25K (Dusk) Start time is 4pm

• 75K Start time window is 4pm Saturday to 12:00 am Sunday

• 50K Start time window is 10pm Saturday to 4am Sunday

• 25K (Dawn) Start time is 7am

​You must start within the time window allocated to your distance.

• You cannot enter the final 25km loop until 7am on Sunday (this includes those doing 160km).

• You should aim for a finish between 10am and noon on Sunday, with final cut off at 2pm.

• For those in the 50k, 75k, 100k and 160k, automatic entry onto the final loop will remain open until 9:30am. A grace period of 15mins will be provided.

Cut off at the final check point is 11:00am. Any participant not through the final checkpoint by this time will be driven back to the Hub or dropped a couple of kilometres away and permitted to finish the event on foot if they wish. Please note that those who are driven part of the course will get a finisher prize but will have a DNF recorded against their name.

With a few editions under our belts we have gained a wealth of information about just how difficult our course can be, so once you’ve registered be sure to ask us lots of questions so we can help you achieve your goals.​

Cut Off Times
160k - Up to 36 hours
100k - Up to 24 hours
75k - Up to 22 hours
50k - Up to 16 hours
25k - Up to 7 hours

Please note that we do not crown a winner or keep a record of elapsed times; we record time of day through various points on course including when you started, went through checkpoints, and crossed the finish line (so we don't think you're lost or still out there).