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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

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

Arinobu OKUIZUMI

Nationality

Japan

Age

40-44 Men

UTMB Index

Index

20K

50K

100K

100M

488

369

489

410

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

07.05.2025

Minami-aso caldera Trail 2025 - 50km

50K

50 KM
2600 M+

09:00:10

32 / 122

30 / 106

05.25.2025

Akiyoshidai Karst Trail Run 2025 - Extreme

50K

49.2 KM
1640 M+

05:52:18

28 / 200

26 / 173

11.02.2024

Bromo Tengger Semeru 100 2024 - BTS 70K

100K

74 KM
3430 M+

14:44:31

14 / 60

13 / 53

07.06.2024

MANTRA116 2024 - MANTRA116 - 38K WELIRANG

50K

38 KM
2750 M+

-

DNF

DNF

05.11.2024

BTR Ultra 2024 - BTRU 55 KM

50K

55 KM
3596 M+

-

DNF

DNF

04.27.2024

Ala Ala Trail 2024 - A2T

20K

18.2 KM
1340 M+

04:51:32

41 / 118

31 / 90

11.05.2023

Bromo Tengger Semeru 100 2023 - BTS 30K

20K

30 KM
1160 M+

05:23:56

55 / 298

51 / 242

05.28.2023

Rinjani 100 2023 - Rinjani Peak 36 Km

50K

36 KM
2783 M+

11:38:30

64 / 222

52 / 175

04.29.2022

Ishioka Trailrun Race 2022 - Super Long

50K

50 KM
2080 M+

05:56:17

34 / 158

32 / 140

Statistics

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

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