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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

21 - 23 August 2026

17 - 20 September 2026

01 - 03 October 2026

08 - 11 October 2026

13 - 15 November 2026

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

16 - 18 October 2026

06 - 08 November 2026

10 - 12 December 2026

29 November - 07 December 2025

14 - 16 November 2025

17 - 19 October 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

Sebastien OLESZYNSKI

Nationality

France

Age

50-54 Men

UTMB Index

Index

20K

50K

100K

100M

382

-

383

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

04.20.2025

NORD TRAIL MONTS DE FLANDRES 2025 - 42 km

50K

42.5 KM
1140 M+

05:38:04

1177 / 1638

1008 / 1326

06.01.2019

Le Trail des Hobbits 2019 - La Comtoise

20K

31 KM
620 M+

04:24:33

241 / 457

200 / 335

04.21.2019

NORD TRAIL MONTS DE FLANDRES 2019 - 25 KM

20K

26.9 KM
500 M+

03:05:07

313 / 1095

267 / 725

Statistics

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

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