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UTMB World Series Events

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South America

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

26 - 28 June 2026

20 - 22 March 2026

North America

14 - 16 August 2026

21 - 23 August 2026

10 - 12 September 2026

17 - 20 September 2026

01 - 03 October 2026

08 - 11 October 2026

13 - 15 November 2026

04 - 06 March 2027

08 - 11 April 2027

22 - 25 April 2027

14 - 16 May 2027

23 - 25 July 2026

27 - 28 June 2026

Asia

11 - 13 September 2026

11 - 13 September 2026

02 - 04 October 2026

16 - 18 October 2026

06 - 08 November 2026

13 - 15 November 2026

27 November - 06 December 2026

10 - 12 December 2026

08 - 10 January 2027

05 - 07 March 2027

18 - 21 June 2026

12 - 14 June 2026

30 April - 03 May 2026

10 - 12 April 2026

14 - 15 March 2026

Oceania

26 - 28 November 2026

13 - 14 February 2027

13 - 16 May 2027

Africa

27 - 30 May 2027

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Guilliam BUTSERAEN

Belgium

20-34 Men

100K

Unavailable UTMB Index

100M

Unavailable UTMB Index

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2026

July 18

50K

Ut4M 50 Belledonne

Ultra Tour des 4 Massifs

Cat.

50K

country

Distance

48 KM

2286 M+

Time

07:49:12

Rank

144

397

Gender

125

319

2025

August 22

20K

Skyrace du Rocher Blanc

Échappée Belle

Cat.

20K

country

Distance

21 KM

2000 M+

Time

04:41:21

Rank

121

202

Gender

102

156

2024

July 20

20K

Ut4m 20 Belledonne

Ultra Tour des 4 Massifs

Cat.

20K

country

Distance

22.5 KM

2020 M+

Time

04:16:58

Rank

110

225

Gender

87

141

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

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