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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

12 - 14 June 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

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

Siam THAWEESOMBAT

Nationality

Thailand

Age

45-49 Men

UTMB Index

Index

20K

50K

100K

100M

417

360

415

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

11.22.2025

BIG BLUE MAE SALONG TRAIL 2025 2025 - MST20

20K

20 KM
1109 M+

03:35:20

27 / 149

20 / 73

11.16.2024

BIG BLUE MAE SALONG TRAIL 2024 2024 - MST33

50K

35 KM
1857 M+

05:22:44

19 / 264

14 / 151

Statistics

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

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