Skip to Content

UTMB World Series Events

Select the event you're interested in

Register to discover the race

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

13 - 15 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

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

Boo WEI CHON

Nationality

Malaysia

Age

35-39 Men

Connect to claim this page

0

UTMB Index

Index

20K

50K

100K

100M

367

362

368

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

12.06.2025

Chiangmai Thailand by UTMB® 2025 - HMONG 50-DAY

50K

56 KM
2400 M+

10:45:43

1085 / 2105

803 / 1460

10.25.2025

Angsi Forest Challenge 2025 - AFC 25

20K

25 KM
1509 M+

05:51:54

63 / 219

55 / 175

05.03.2025

Amazean Jungle Thailand by UTMB 2025 - JUNGLE 50K

50K

50 KM
2350 M+

12:04:11

240 / 504

195 / 379

10.12.2024

Angsi Forest Challenge 2024 - AFC 25

20K

25 KM
1646 M+

08:59:01

82 / 86

70 / 73

Statistics

Filter by UTMB INDEX

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

Join us

Sponsorship

Race Organisers

Jobs

Stay in Touch

FAQ and Help

Contact Us

Follow us

Terms & conditions

Privacy Policy

Cookies preferences

©2024 UTMB® all rights reserved. Ultra-Trail® and UTMB® are registered trademarks..