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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

21 - 23 August 2026

10 - 12 September 2026

17 - 20 September 2026

01 - 03 October 2026

08 - 11 October 2026

13 - 15 November 2026

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

02 - 04 October 2026

16 - 18 October 2026

06 - 08 November 2026

10 - 12 December 2026

29 November - 07 December 2025

14 - 16 November 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

William CASTELAIN

William CASTELAIN

Nationality

France

Age

20-34 Men

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Club

Team Volcanix

Team

Team Wolf

Sponsor(s)

Running Shop

Social Media

UTMB Index

Index

20K

50K

100K

100M

555

555

521

445

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

02.01.2026

La Romagnatoise 2026 - Le trail du Golloix

50K

50.6 KM
1690 M+

05:14:13

15 / 60

14 / 56

01.17.2026

TRAIL DES LIONS NOCTURNE 2026 - La grande Nocturne

20K

25.5 KM
931 M+

02:19:29

22 / 235

22 / 203

07.12.2025

Trail Verbier St Bernard by UTMB 2025 - X-Traversee

100K

77.5 KM
5030 M+

16:57:37

608 / 1156

541 / 990

03.02.2025

TRAIL DE VULCAIN 2025 - Riom Limagne & Volcans

20K

28 KM
870 M+

02:34:29

28 / 546

28 / 365

02.02.2025

La Romagnatoise 2025 - La ronde des plateaux

50K

38.7 KM
1530 M+

04:10:52

57 / 213

53 / 180

01.18.2025

TRAIL DES LIONS NOCTURNE 2025 - La grande Nocturne

20K

25.5 KM
931 M+

02:20:23

40 / 262

39 / 232

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

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