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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

14 - 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

William BUFFIERES

William BUFFIERES

Nationality

France

Age

20-34 Men

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UTMB Index

Index

20K

50K

100K

100M

581

576

564

569

563

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

08.29.2025

HOKA UTMB Mont-Blanc 2025 - UTMB

100M

174 KM
9900 M+

31:44:54

225 / 1665

195 / 1444

07.04.2025

HOKA Val d’Aran by UTMB® 2025 - Camins d'Hèr - CDH

100K

102.7 KM
5210 M+

16:26:59

164 / 792

155 / 739

04.26.2025

Grand Raid Ventoux by UTMB 2025 - GRV - 50K

50K

49 KM
2200 M+

05:26:26

135 / 957

128 / 799

08.26.2024

HOKA UTMB Mont-Blanc 2024 - TDS

100M

148 KM
9300 M+

31:43:55

204 / 1111

192 / 1006

07.04.2024

Restonica Trail by UTMB 2024 - Ultra-Trail® di Corsica

100M

111 KM
7128 M+

24:31:32

73 / 319

69 / 285

06.15.2024

Trail du Saint-Jacques by UTMB® 2024 - Les Chibottes - 20K

20K

17.7 KM
534 M+

01:29:04

54 / 990

52 / 551

06.01.2024

MaXi-Race du lac d'Annecy 2024 - MaXi-Race le tour du lac d'annecy en 1 jour

100K

93 KM
5200 M+

15:02:16

406 / 838

379 / 783

10.19.2023

Le Grand Raid De La Réunion 2023 - La Diagonale Des Fous

100M

167.3 KM
9710 M+

42:08:00

418 / 2047

386 / 1793

08.26.2023

Grand Raid des Pyrénées 2023 - Tour des Lacs

100K

80 KM
5000 M+

13:59:25

187 / 865

179 / 784

07.07.2023

Val d’Aran by UTMB® 2023 - CDH - Arties - 96km

100K

96 KM
5143 M+

17:53:45

326 / 418

208 / 372

Statistics

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

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