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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

10 - 12 April 2026

30 April - 03 May 2026

18 - 21 June 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

16 - 18 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2025

Africa

29 - 31 May 2026

MYUTMB

William LAI

Nationality

Malaysia

Age

45-49 Men

UTMB Index

Index

20K

50K

100K

100M

334

-

269

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

08.30.2025

The Most Beautiful Thing 2025 - 37 Km Night Challenge

50K

37.7 KM
1865 M+

09:25:45

67 / 115

51 / 77

07.15.2023

Cameron Ultra 2023 - CULTRA 30

20K

30.4 KM
1470 M+

07:16:43

191 / 390

145 / 287

09.18.2022

The Most Beautiful Thing 2022 - 37 Km Night Challenge

50K

37.7 KM
1865 M+

09:13:17

70 / 126

59 / 92

09.16.2017

The Most Beautiful Thing 2017 - 30 Km

20K

29.9 KM
1980 M+

09:19:10

159 / 219

120 / 155

Statistics

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

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