Skip to Content

UTMB World Series Events

Select the event you're interested in

Register to discover the race

North America

23 - 25 July 2026

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

27 - 28 June 2026

South America

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

26 - 28 June 2026

20 - 22 March 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

MYUTMB

Connect to claim this page

Guilliam BUTSERAEN

Belgium

20-34 Men

100K

Unavailable UTMB Index

100M

Unavailable UTMB Index

How does the calculation work?

Evolution

Results

How is my score calculated?

Why isn't my result appearing?

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

Join us

Sponsorship

Race Organisers

Jobs

Stay in Touch

FAQ and Help

Contact Us

MyUTMB+

Follow us

Terms & conditions

Privacy Policy

Cookies preferences

©2024 UTMB® all rights reserved. Ultra-Trail® and UTMB® are registered trademarks..