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UTMB World Series Events

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Asia

08 - 09 November 2025

14 - 16 November 2025

29 November - 07 December 2025

06 - 08 March 2026

30 April - 03 May 2026

15 - 17 May 2026

18 - 21 June 2026

11 - 13 September 2026

10 - 12 December 2026

17 - 19 October 2025

17 - 19 October 2025

17 - 19 October 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 November 2025

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

18 - 21 September 2025

North America

21 - 23 November 2025

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

27 - 28 June 2026

23 - 25 July 2026

14 - 16 August 2026

17 - 20 September 2026

08 - 11 October 2026

02 - 04 October 2025

26 - 28 September 2025

Oceania

27 - 29 November 2025

14 - 15 February 2026

14 - 17 May 2026

Africa

29 - 31 May 2026

MY UTMB

Jack LAI

Nationality

Hong Kong, China

Age

65-69 Men

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UTMB Index

Index

20K

50K

100K

100M

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Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

10.25.2025

La Sportiva Ultra Fish N Sheep 50 2025

50K

51.5 KM
3247 M+

-

DNF

DNF

10.01.2023

COROS SPARK 100 2023 - COROS SPARK 100 - 72km

100K

72 KM
3644 M+

21:23:30

113 / 125

94 / 105

03.04.2023

SALOMON HONG KONG DYNAMIC 100KM 2023 - Salomon 50km

50K

49.3 KM
3110 M+

10:37:16

155 / 217

122 / 175

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

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