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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

10 - 12 April 2026

30 April - 03 May 2026

18 - 21 June 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

16 - 18 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2025

Africa

29 - 31 May 2026

MYUTMB

Bonjin KOO

Nationality

South Korea

Age

55-59 Men

UTMB Index

Index

20K

50K

100K

100M

472

360

473

437

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

09.20.2025

Seoul 100K 2025 - Ultra100

100K

107.9 KM
4847 M+

21:38:04

125 / 331

109 / 289

04.05.2025

JANGSU TRAIL RACE 2025 - 5th JTR 38K-P

50K

38.7 KM
2431 M+

05:33:33

31 / 618

31 / 487

06.08.2024

2024 GEOJE 100K 2024 - GEOJE 30K

20K

32 KM
1464 M+

05:16:42

153 / 320

137 / 268

10.21.2023

Seoul 100K 2023 - SKY50

50K

50 KM
2264 M+

08:39:00

40 / 248

34 / 196

Statistics

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

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