IAU Trail World Championships

The IAU Trail World Championships are annual trail running World Championships, from 2007 up to 2015 was biennial, held for the first time in Huntsville, United States in 2007 and organised by International Association of Ultrarunners.^[1]

The 2021 World Mountain and Trail Running Championships (abbreviated WMTRC 2021), held in Chiang Mai, Thailand, from November 4–6, 2022, combined the World Mountain Running Championships and IAU Trail World Championships.

Editions

	Year	Date	Venue	Country	Distance	Arrived at the finish	Notes
1st	2007	8 December	Huntsville, 18. Sunmart Texas Trail	United States	80.5 km	172 (128 m, 44 w)	Results, Results
2nd	2009	12 July	Serre Chevalier, Merrell Sky Race	France	68 km	046 (32 m, 14 w)	Results
3rd	2011	9 July	Connemara	Ireland	71.5 km	098 (68 m, 30 w)	Results, Results
4th	2013	6 July	Llanrwst Wales	United Kingdom	75 km	099 (53 m, 46 w)	Report, Results, Results (xls 84kb)
5th	2015	30 May	Annecy, 4. Maxi Race du Lac d'Annecy	France	84 km	229 (144 m, 85 w)	Report, Results
6th	2016	29 October	Braga, Trans Peneda-Gerês	Portugal	85 km	203 (119 m, 84 w)	Report, Results
7th	2017	10 June	Badia Prataglia, Sacred Forests	Italy	50 km	239 (138 m, 101 w)	Report, Results
8th	2018	12 May	Castellón de la Plana, 18. Penyagolosa Trails HG	Spain	85.3 km	263 (159 m, 104 w)	Results
9th	2019	8 June	Miranda do Corvo, Trilhos dos Abutres	Portugal	44.2 km	363 (204 m, 159 w)	Results