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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

Koji IWAHASHI

Nationality

Japan

Age

45-49 Men

UTMB Index

Index

20K

50K

100K

100M

383

359

383

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

04.12.2026

WAKE ALPS TRAIL 50 2026 - Long

50K

47 KM
2274 M+

09:27:04

186 / 253

175 / 233

10.06.2024

FORESTRAIL HIRUZEN-SHINJO 2024 - Middle

20K

36.8 KM
1280 M+

06:05:21

157 / 275

139 / 233

05.13.2023

Mt. Hiei International Trail Run 2023 - 50km

50K

48.6 KM
3010 M+

-

DNF

DNF

05.21.2022

Mt. Hiei International Trail Run 2022 - 50km

50K

48.6 KM
3010 M+

09:54:29

408 / 573

342 / 476

09.30.2019

Wakasaji trail run 2019 - Long course 43 Km

50K

40.6 KM
2340 M+

08:23:18

188 / 258

167 / 220

Statistics

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

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