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UTMB World Series Events

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North America

23 - 26 April 2026

15 - 17 May 2026

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

16 - 18 April 2026

09 - 12 April 2026

Asia

30 April - 03 May 2026

12 - 14 June 2026

18 - 21 June 2026

11 - 13 September 2026

11 - 13 September 2026

02 - 04 October 2026

16 - 18 October 2026

06 - 08 November 2026

13 - 15 November 2026

28 November - 06 December 2026

10 - 12 December 2026

10 - 12 April 2026

14 - 15 March 2026

06 - 08 March 2026

Oceania

14 - 17 May 2026

26 - 28 November 2026

13 - 14 February 2027

Africa

29 - 31 May 2026

South America

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

20 - 22 March 2026

MYUTMB

Siwanat WORRASIVA

Siwanat WORRASIVA

Nationality

Thailand

Age

35-39 Men

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UTMB Index

Index

20K

50K

100K

100M

397

386

397

364

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

01.24.2026

Anta Hong Kong 100 ultra 2026 - Anta Hong Kong 100 - HK100

100K

92.9 KM
5073 M+

22:07:32

1291 / 1844

932 / 1257

12.05.2025

Chiangmai Thailand by UTMB® 2025 - ELEPHANT 100

100K

96 KM
4600 M+

22:38:04

546 / 993

443 / 784

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

Statistics

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

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