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UTMB World Series Events

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South America

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

20 - 22 March 2026

North America

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

04 - 06 March 2027

08 - 11 April 2027

22 - 25 April 2027

14 - 16 May 2027

Asia

11 - 13 September 2026

11 - 13 September 2026

02 - 04 October 2026

16 - 18 October 2026

06 - 08 November 2026

13 - 15 November 2026

27 November - 06 December 2026

10 - 12 December 2026

08 - 10 January 2027

18 - 21 June 2026

12 - 14 June 2026

30 April - 03 May 2026

10 - 12 April 2026

14 - 15 March 2026

06 - 08 March 2026

Oceania

26 - 28 November 2026

13 - 14 February 2027

13 - 16 May 2027

Africa

27 - 30 May 2027

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Siam KOSIYAWAT

Thailand

60-64 Men

50K

Unavailable UTMB Index

100K

Unavailable UTMB Index

100M

Unavailable UTMB Index

How does the calculation work?

Evolution

Results

2025

December 21

20K

Tranaosri Little Boy 25

Tanaosri Trail

Cat.

20K

country

Distance

26 KM

1590 M+

Time

08:52:09

Rank

545

667

Gender

363

429

August 24

20K

28 KM.

UTHAI TRAIL

Cat.

20K

country

Distance

28 KM

920 M+

Time

06:16:48

Rank

159

193

Gender

107

124

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

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