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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

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

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

Atsuo KOBAYASHI

Nationality

Japan

Age

50-54 Men

UTMB Index

Index

20K

50K

100K

100M

386

386

369

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

07.27.2025

Akagiyama Trail Running Race 2025

50K

31.8 KM
2462 M+

07:15:12

171 / 298

153 / 264

05.25.2025

OSJ OKUKUJI TRIAL 2025 - SHORT

20K

33.2 KM
1550 M+

07:01:05

113 / 325

101 / 278

Statistics

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

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