Race Details KOSCI 50

RACE DATE Thursday 15 December 2022
DISTANCE & ELEVATION 50km / +/-1894m
START LINE Friday Flats – Thredbo NSW
TRANSPORT Shuttle services will be available to and from start and finish line venues. Full details closer to the event
FINISH LINE Bullocks Flat – Ski Tube Terminal
ENTRY INCLUSIONS Race entry, athlete t-shirt, finisher medal, finisher gift, finisher certificate, fully stocked checkpoints, drop bag service, on-course medical support and assistance, course photography.
MANDATORY GEAR Standard Mandatory Gear requirements will apply – list to be provided after entries open.
START GROUPS Runners will be contacted regarding Start Group process closer to the event 
MINIMUM AGE 18 years of age on race day.
TOTAL ALLOWABLE TIME 13 hours 30 mins
CUTOFF PACE REQUIRED (min/km) 16:12/km
  • Open (18-29yr)
  • Veterans (30-39yr)
  • Masters (40-49yr)
  • Super Masters (50-59yr)
  • Grand Masters (60-69yr)
  • Supreme Masters (70+yr)
  • 1st Place Overall M/F UTK 50km
  • 5 Fastest Males and Females receive trophy
  • 3 Fastest Males and Females receive FOC for next year's event
  • Prizes awarded 1st-3rd in each division
UTMB QUALIFYING 2 Running Stones

All information subject to change


Picture 50km of trail running heaven, and you’ll have a pretty good idea of what’s in store for the Kosci50. Heading out from the ski hub of Thredbo, you’ll wind your way beneath chairlifts and amongst ski routes, ascending the mountain before flying down flowy MTB single track – the stuff dreams are made of…

The sound of trickling water will accompany you along the next parts of the route as you follow the Thredbo River, before ascending to the highest point on your course – the Eagles Nest. From here it’s almost all downhill, as you make your way down flow trails and reunite with the Thredbo River all the way down to Bullocks Flat and the awaiting finish line.

With just shy of 1900m of climbing the Kosci50 isn’t a grunt, but a nice mix of up and downhill on runnable trails that make the most of the views, the alpine air and the happy trails. Perfect for first time ultra-runners or those looking for a great “experience to KM” ratio.


Kosci22 50Map

Download PDF

Subject to change pending final approvals


path 3

95% Paths

Walking tracks, single trail

track 5

4% Tracks

Fire roads, dirt roads

road 8

1% Road

Bitumen roads, tarmac


Checkpoint locations coming soon.

Checkpoints are generously stocked with:

  • Lollies
  • Electrolyte drink (pre-mixed)
  • Water
  • Fruit
  • Bakery goods
  • Hot water, tea, coffee, soup
  • Toilets

Please note we are a cup-less event. In an effort to cut down on waste, we will have no drinking cups at checkpoints. You will need to carry a cup or hydration pack with you. Limited stock of cups and hydrations packs will be available for sale at the event expo, but we encourage you to purchase one in advance and use it in your training.

Signs will be placed 200 metres before each checkpoint and exit signs will indicate the distance to the next checkpoint.

First Aid will be available at each checkpoint and the finish. There will also be roving first aid crews on the course.

If you are using a support crew, you must also read the Support Crew section.

Drop Bags

A drop bag service will be available which allows you to have your own personal supplies returned from the start line to the finish.

Your bag needs be closable and soft and a reasonable size. In line with our commitment to sustainability please don’t use plastic bags or plastic boxes – these will not be accepted. One drop bag per runner is allowed.

Finish line drop bags can be left in the designated area near the start line at Thredbo on Friday morning.

Drop bags will be returned to the drop bag marquee at the Kosci Trail Village. Collect by showing your race number. Any drop bags not collected by 6pm on the Saturday will be disposed of.

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Support Crews

content spectators gomum kids

We love support crews almost as much as our runners at Ultra-Trail Kosciuszko by UTMB – you are always the most colourful (and loudest!) and a huge part of the magical atmosphere of the whole weekend.

You also have the very important job of getting your runners to the finish line.

First job for support crew is to read the support crew section in the Runner Guide, available one month before the event. It contains important information you will need to know for the event.

To keep the event manageable as well as fair and safe for all athletes, and to make sure support crews do not get lost, there is some information that support crews need to know.

  • Support crews are only allowed to assist runners at certain checkpoints (full details provided prior to the event)
  • Pacers are not allowed for Kosci50 runners.
  • Support crews cannot run alongside their runners at any point on the course outside of the aid stations.