Race Details KOSCI MILER

RACE DATE Friday 16 December 2022
DISTANCE & ELEVATION 160.93km / +/- 4687m
QUALIFICATION CRITERIA Completing a KosciMiler is a physically and mentally challenging event and participation in it requires significant training and preparation. For your health and safety, we require evidence of your ability to take part by meeting the qualification criteria
START LINE Friday Flat – 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, Miler 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 – full details closer to the event
START GROUPS Runners will be contacted regarding Start Group process closer to the event 
MINIMUM AGE 18 years of age on race day.
CUTOFF PACE REQUIRED (min/km) 13:30/km
EXPECTED TIME FINAL FINISHER 36:00:00 (5:30pm Sat 17 Dec)
Open (18-29yr)
Veterans (30-39yr)
Masters (40-49yr)
Super Masters (50-59yr)
Grand Masters (60-69yr)
Supreme Masters (70+yr)
AWARDS & PRIZES 1st Place Overall M/F KosciMiler
10 Fastest Males and Females receive trophy
5 Fastest Males and Females receive FOC for next year's event
Prizes awarded 1st 2nd 3rd in each division
UTMB QUALIFYING 4 Running Stones


All information subject to change


From alpine meadows to snow gum forests, golden pastures to lakeside trails, crystal clear creeks and the ultimate mountain summit – the KosciMiler course was designed as the ultimate Ultra-Trail experience.

Starting out in Thredbo, the home of adventure sport in Australia, courses will ascend a mountainside earmarked for skiing in the winter and MTB riding in the summer, before making the journey across the alpine plateau towards the highest peak in Australia – Mt Kosciuszko. After taking in the views from the top, runners will make their way down the trails of Perisher Valley, stopping off at iconic alpine locations like Charlotte Pass, Perisher and Blue Cow along the way to meet with their support crews.

Here they’ll see a change in scenery, as the alpine meadows turn into snow gum forests, and trails twist and turn between trees as they make their way down towards Lake Jindabyne. A boat crossing will take you to the lakeside trails of Jindabyne, a final chance to refuel before you head back for the mountains and make your way up the Thredbo Valley trail to your final destination – the finish line at Bullocks Flat.

With just over 4500m of climbing it’s not a mountainous Miler by any means, perfect for those looking to give the distance a go for the first time.


Kosci22 MilerMap2

download PDF

Subject to change pending final approvals

*Note: the 5km section of course between Eagles Nest and Kosciuszko Summit Trail, along the steel mesh walkway, will be a mandatory walking section.


path 7

70% Paths

Walking tracks, single trail

track 3

14% Tracks

Dirt roads, double track

road 1

16% Roads

Bitumen roads, tarmac


Checkpoint locations are 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 (gels, food, change of socks, shoes, shorts, lubricant, etc.) available at certain checkpoints or at the finish.

Your bag needs be closable and soft and a reasonable size. Cool bags from the big supermarkets are perfect! 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 for each location.

Checkpoint drop bags can be delivered to the checkpoint trucks at race check-in on Thursday between 10:00am and 7:30pm. Please don't be early, as if not placed directly into the correct checkpoint trucks they may go missing!

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 within 4 hours after the relevant checkpoint cut-off time. Collect by showing your race number. Any drop bags not collected by 6pm on the Saturday will be disposed of.

  • Please don’t use glass bottles/jars
  • Clearly mark your drop bag using a permanent marker pen with:
    • Surname
    • race number
    • checkpoint location
  • At checkpoints and the finish line – drop bags will be lined up numerical order. Any bags without or clearly written/visible with a name and race number, will placed at the end of the number range.
  • Only the runner can collect their drop bag at the drop bag locations. Once each checkpoint drop bag is finished with it must be taken to the used drop bag pile.
  • There is a drop bag service for runners without a support crew. Runners may use a mixture of support crew at some checkpoints and the drop bag service at other checkpoints. Please don’t use the drop bag service for any checkpoints where your support crew will be.

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content bag drop

Support Crew

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 allowed for KosciMiler runners - more info in the pacers section below.
  • Support crews cannot run alongside their runners at any point on the course outside of the aid stations.


Pacers are companion runners that can accompany a KosciMiler athlete from various points. Full details will be provided closer to the event with Pacer pick-up locations. Pacers run for free but must be registered online no later than 10 December 2022. A link to register can be found on the athlete's registration confirmation email. The Pacer's role is to accompany their athlete, to provide moral support, pacing advice and companionship in the latter stages of the event.

There are strict rules regarding pacing:

  • Pacers MUST register themselves online as they will be required to sign a waiver.
  • All Pacers must wear a compulsory race bib number. Pacer(s) must attend Runner Check-in to collect their bib.
  • The minimum age for Pacers is 18 years old.
  • Pacer numbers will be light green and match the number of your athlete. This is so we know you are part of the event.
  • Pacers must carry their own set of mandatory clothing and equipment items to match that required by the KosciMiler runners.
  • Pacers cannot meet their runner before or after the designated start locations or at intermediate points. Doing so results in disqualification.
  • Competitors can use two Pacers – but only one at a time (they must change over at a checkpoint).
  • If you plan to make an exchange, you must hand over your pacer number to the next pacer.
  • Pacers are responsible for their own transport.
  • There are no Pacers for Kosci27, Kosci50 or Kosci100 runners.
  • Pacers may not carry extra water, food or equipment for runners.
  • With the exception of an emergency or medical situation, Pacers cannot provide any material or physical assistance to their athletes.