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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

Siwanat WORRASIVA

Siwanat WORRASIVA

Nationality

Thailand

Age

35-39 Men

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UTMB Index

Index

20K

50K

100K

100M

400

387

398

356

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

10.26.2025

ULTRA NAKEE NAKA TRAIL 2025 - KLED NAK 50

50K

49 KM
1850 M+

09:48:52

31 / 98

27 / 73

05.03.2025

Amazean Jungle Thailand by UTMB 2025 - JUNGLE 50K

50K

50 KM
2350 M+

11:17:48

173 / 504

145 / 379

12.07.2024

Chiangmai Thailand by UTMB® 2024 - HMONG 50-2024

50K

50 KM
2030 M+

09:31:30

879 / 2167

658 / 1459

09.01.2024

THAILAND EARTH TRAIL SERIES 2023 2024 - TETS-SRI 30KM

20K

30.4 KM
573 M+

04:21:28

41 / 586

33 / 360

01.13.2024

Kheknoi Ultra Trail 2024 - Kheknoi 70

100K

71 KM
3061 M+

16:25:55

15 / 44

11 / 30

12.09.2023

Doi Inthanon by UTMB 2023 - HMONG 50

50K

50 KM
2870 M+

10:17:06

704 / 1332

503 / 900

01.14.2023

Kheknoi Ultra Trail 2023 - KhekNoi50

50K

49.3 KM
2430 M+

09:41:00

15 / 44

10 / 28

08.06.2022

50K

62.9 KM
3410 M+

16:49:20

179 / 240

139 / 187

12.18.2021

Ultra-Trail Nan 100 2021 - Ultra-Trail Nan 50

50K

50.1 KM
2530 M+

10:50:46

67 / 165

51 / 106

11.27.2021

50K

62 KM
3200 M+

17:53:47

319 / 326

242 / 246

Statistics

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

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