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UTMB World Series Events

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North America

02 - 04 October 2025

09 - 11 October 2025

22 - 23 November 2025

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

27 - 28 June 2026

24 - 25 July 2026

14 - 16 August 2026

26 - 28 September 2025

18 - 21 September 2025

Asia

17 - 19 October 2025

17 - 19 October 2025

17 - 19 October 2025

08 - 09 November 2025

14 - 16 November 2025

29 November - 07 December 2025

06 - 08 March 2026

15 - 17 May 2026

26 - 28 September 2025

19 - 22 June 2025

01 - 04 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 November 2025

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

18 - 21 September 2025

Oceania

27 - 29 November 2025

14 - 15 February 2026

14 - 17 May 2026

Africa

29 - 31 May 2026

MY UTMB

Lorena BOSSERT

Nationality

Switzerland

Age

20-34 Women

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UTMB Index

Index

20K

50K

100K

100M

563

-

562

-

-

Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

07.05.2025

Stoos-Trail 2025 - Stoos-Trail ST46

50K

46.6 KM
2480 M+

06:05:31

35 / 123

4 / 18

07.20.2024

Eiger Ultra Trail® by UTMB 2024 - E51 - Panorama Trail

50K

54 KM
3057 M+

07:29:05

89 / 877

19 / 247

06.01.2024

The Arctic Triple Lofoten Ultra-Trail® 2024 - 48 KM

50K

48 KM
2800 M+

07:58:49

26 / 106

3 / 24

07.29.2023

Davos X-Trails 2023 - Silver Run 23 km

20K

23.6 KM
631 M+

02:12:24

79 / 573

21 / 230

Statistics

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

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