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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

William DUFFO

Nationality

France

Age

20-34 Men

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UTMB Index

Index

20K

50K

100K

100M

506

508

384

-

-

Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

08.21.2025

Grand Raid des Pyrénées 2025 - Tour de la Gela

50K

40 KM
3400 M+

-

DNF

DNF

07.05.2025

Luchon Aneto trail 2025 - Oô-Pyrenées

50K

42 KM
2600 M+

-

DNF

DNF

06.21.2025

Patou Trail 2025 - MARATHON RELAIS - Relai 1

20K

18.6 KM
1600 M+

03:04:47

15 / 92

13 / 49

05.18.2025

Trail de la Barousse 2025 - Trail du Gouhouroun

20K

26 KM
1297 M+

03:46:24

95 / 238

82 / 172

05.17.2025

Trail de la Barousse 2025 - Trail le Robuste

20K

25 KM
1700 M+

03:51:12

80 / 267

68 / 195

05.16.2025

Trail de la Barousse 2025 - Kv Didier Bellan

-

2.3 KM
920 M+

01:06:39

181 / 255

155 / 203

04.19.2025

Trans Aubrac 2025 - Trans Aubrac Relais 2

20K

31.5 KM
1530 M+

03:51:21

98 / 274

89 / 214

07.07.2024

Luchon Aneto trail 2024 - La Kbour

20K

21 KM
1300 M+

02:35:41

92 / 609

71 / 339

08.25.2023

Grand Raid des Pyrénées 2023 - Tour du Néouvielle

50K

43.7 KM
2478 M+

08:30:44

643 / 1349

480 / 887

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

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