Skip to Content

UTMB World Series Events

Select the event you're interested in

Register to discover the race

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

13 - 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

Naoki KOBAYASHI

Nationality

Japan

Age

45-49 Men

Connect to claim this page

0

UTMB Index

Index

20K

50K

100K

100M

557

392

529

550

547

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

12.06.2025

Chiangmai Thailand by UTMB® 2025 - SUTHEP 20-NIGHT

20K

21 KM
1200 M+

03:52:51

136 / 511

98 / 302

12.05.2025

Chiangmai Thailand by UTMB® 2025 - ELEPHANT 100

100K

96 KM
4600 M+

17:14:49

199 / 993

160 / 784

09.20.2025

Sky View Trail 2025 - Sky View Trail 130

100M

138 KM
8017 M+

29:09:19

39 / 97

35 / 89

06.21.2025

Kaga Spa by UTMB 2025 - 2025 Kaga Spa Trail Endurance100

100K

99.8 KM
6150 M+

24:45:31

318 / 455

272 / 388

04.25.2025

MtFUJI100 2025 - FUJI

100M

168.6 KM
6254 M+

28:45:20

124 / 1509

116 / 1340

02.28.2025

ONAGAWA100TRAILS 2025 - 100mile

100M

161 KM
8300 M+

27:55:56

14 / 59

13 / 51

12.08.2024

IZU Trail Journey 2024 - ITJ70k

100K

69.1 KM
3242 M+

09:00:43

113 / 1343

102 / 1120

11.16.2024

KUMAGAWA REVIVAL TRAIL 2024 - Kumagawa

100M

167 KM
9400 M+

35:53:02

39 / 143

37 / 125

09.08.2024

OSJ Adatara Trail 2024 - 50km

50K

49 KM
3740 M+

10:42:43

45 / 204

42 / 173

05.26.2024

OSJ OKUKUJI TRIAL 2024 - LONG

50K

61.8 KM
3210 M+

10:28:02

57 / 274

53 / 257

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..