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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

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

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

Nathan LALAIRE

Nationality

France

Age

20-34 Men

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UTMB Index

Index

20K

50K

100K

100M

478

397

480

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

12.07.2025

Les 40 Bosses 2025 - Les 40 bosses - 45km

50K

45 KM
2100 M+

06:30:58

107 / 391

104 / 345

04.06.2025

2T2M 2025 - 2T2M 40

50K

47.5 KM
2050 M+

07:16:13

253 / 339

228 / 294

02.01.2025

MaxiCross 2025 - NightCross

20K

23.3 KM
1100 M+

03:46:10

296 / 541

272 / 434

04.27.2024

2T2M 2024 - 2T2M by Night

20K

23.1 KM
900 M+

03:25:53

184 / 264

149 / 205

Statistics

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

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