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UTMB World Series Events

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Oceania

14 - 15 February 2026

14 - 17 May 2026

26 - 28 November 2026

North America

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

15 - 17 May 2026

27 - 28 June 2026

23 - 25 July 2026

14 - 16 August 2026

17 - 20 September 2026

08 - 11 October 2026

13 - 15 November 2026

02 - 04 October 2025

26 - 28 September 2025

Asia

06 - 08 March 2026

14 - 15 March 2026

10 - 12 April 2026

30 April - 03 May 2026

12 - 14 June 2026

18 - 21 June 2026

11 - 13 September 2026

11 - 13 September 2026

10 - 12 December 2026

29 November - 07 December 2025

14 - 16 November 2025

08 - 09 November 2025

17 - 19 October 2025

11 - 20 April 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

Africa

29 - 31 May 2026

MYUTMB

Nathanaël DEMEFFE

Nationality

Belgium

Age

20-34 Men

UTMB Index

Index

20K

50K

100K

100M

449

450

-

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

06.28.2025

L'assaut du Maquisard 2025 - 16km Trail

20K

16 KM
494 M+

01:44:01

95 / 265

80 / 186

05.17.2025

Grand Trail Des Lacs Et Chateaux Summer Edition (GTLC) 2025 - GT21

20K

23.1 KM
781 M+

02:56:39

236 / 546

174 / 287

04.16.2023

Trail Liège Métropole 2023 - 21 km

20K

21 KM
500 M+

02:23:51

286 / 569

255 / 383

Statistics

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UTMB® World Series - Ranking of trail runners by performance level on trail running

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