Skip to Content
UTMB Logo Icon
UTMB® World
UTMB World Series Events

Select the event you're interested in

Register to discover the race

Europe

22 - 25 January 2026

19 - 22 March 2026

19 - 21 March 2026

09 - 12 April 2026

24 - 26 April 2026

01 - 03 May 2026

14 - 17 May 2026

15 - 17 May 2026

23rd May 2026

11 - 14 June 2026

12 - 14 June 2026

18 - 20 June 2026

24 - 28 June 2026

01 - 05 July 2026

09 - 11 July 2026

10 - 12 July 2026

15 - 19 July 2026

17 - 19 July 2026

24 - 26 July 2026

01 - 02 August 2026

06 - 08 August 2026

24 - 30 August 2026

10 - 13 September 2026

11 - 13 September 2026

18 - 20 September 2026

24 - 27 September 2026

30 - 31 October 2026

30 October - 01 November 2026

07 - 09 November 2025

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

Naotoshi OKUMURA

Nationality

Japan

Age

55-59 Men

UTMB Index

Index
20K
50K
100K
100M

440

407

439

402

-

Races

date
Race
country
Cat.
Distance /
m+
Time
Rank
Gender
Score
07.13.2025
OSJ Ontake 100 2025 - 100 Km
100K
99.5 KM
3395 M+
17:11:00
667 / 879
562 / 748
06.07.2025
Okushinano100 2025 - 50K
50K
52.4 KM
2390 M+
08:48:33
186 / 339
151 / 238
12.08.2024
IZU Trail Journey 2024 - ITJ70k
100K
69.1 KM
3242 M+
12:04:08
769 / 1343
674 / 1120
09.23.2024
OSJ ONTAKE50 2024 - LONG
50K
54 KM
1896 M+
06:37:55
105 / 282
96 / 250
05.11.2024
Mt. Hiei International Trail Run 2024 - 23km
20K
22.7 KM
1430 M+
03:51:32
184 / 513
152 / 380
12.10.2023
IZU Trail Journey 2023 - Around Alone 28k
20K
28.9 KM
1139 M+
04:19:05
92 / 232
73 / 147

Statistics

Filter by UTMB INDEX

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

Join us

Sponsorship

Race Organisers

Jobs

Stay in Touch

FAQ and Help

Contact Us

Follow us

Terms & conditions

Privacy Policy

Cookies preferences

©2024 UTMB® all rights reserved. Ultra-Trail® and UTMB® are registered trademarks..