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IAU friends who race in Europe. We are holding our IAU 100K World Championships in Croatia this year but need to be able to follow on with our continental 100K championships in 2019.  If you are aware of any excellent IAU labelled 100K races in Europe where the LOC have higher ambitions to hold our championships, please let us know as soon as possible.  The bid calendar for all IAU events can be found in the link below and the initial deatline is 28th February 2018.

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It is our great pleasure to welcome Bolivia as new IAU Member. All required documentation were signed and finalise. 
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Sveti Martin na Muri, Croatia Irdning, Austria

2018 100K World Championships
8th September 2018, Sveti Martin na Muri, Croatia

2019 24H World Championships
proposed: July 2019, Irdning, Austria
IAU Badia Prataglia, Italy

No information available at this moment

2018 TRAIL World Championships
12th May 2018, Penyagolosa, Spain

Trailer 2018 WC Trail Penyagolosa  


2/3/2018 161Kms, 101Kms, 51Kms India Trail
Run The Rann

2/9/2018 12H Taiwan Road
2018 Taipei Ultramarathon

2/9/2018 48H Taiwan Road
2018 Taipei Ultramarathon

>> Go to the calendar

The International Association of Ultrarunners (IAU) is operating under the patronage of the IAAF and is dedicated to develop ultradistance running internationally within the IAAF Rules & Regulations.

As international governing body for ultradistance running, one of our main objectives is to promote and develop long distance running worldwide by encouraging specific activities in each of the IAAF Continental Areas.

The 100 km is our “flagship” since the IAAF officially sanctions this distance and also ratifies 100 km world records.

The major IAU competitions are :
100 km World Championships under the patronage of the IAAF
100 km Area Championships
24H World Championships
24H Area Championships
Trail World Championship
50 km World Championship

>> Go to about us

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