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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

13 - 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 LASSERRE

William LASSERRE

Nationality

Canada

Age

35-39 Men

Connect to claim this page

William LASSERRE

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UTMB Index

Index

20K

50K

100K

100M

583

-

571

572

497

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

09.07.2025

Ultra-Trail Harricana du Canada 2025 - UTHC 65 km

50K

62 KM
1870 M+

07:54:38

53 / 392

43 / 275

07.05.2025

QMT- Québec Mega Trail 2025 - QMT 50

50K

50 KM
2300 M+

06:47:05

52 / 457

39 / 322

09.07.2024

Ultra-Trail Harricana du Canada 2024 - UTHC 65 km

50K

62 KM
1870 M+

07:37:22

19 / 391

15 / 277

08.17.2024

Ultra Trail Chic-chocs 2024 - Le marathon du Mont-Albert

50K

44.8 KM
2070 M+

07:01:13

17 / 119

15 / 79

06.15.2024

Trail 100 Andorra by UTMB® 2024 - Ultra 105K

100M

109 KM
6900 M+

23:09:37

139 / 460

130 / 427

05.20.2024

TRAIL COUREUR DES BOIS - Duchesnay 2024 - TCB 48

50K

46 KM
1430 M+

05:59:57

13 / 90

8 / 73

09.09.2023

Ultra-Trail Harricana du Canada 2023 - 125

100K

123.2 KM
4040 M+

20:18:12

23 / 163

20 / 135

07.02.2023

QMT- Québec Mega Trail 2023 - QMT 110

100K

110 KM
5000 M+

16:55:17

15 / 74

14 / 62

06.04.2023

Trail La Clinique Du Coureur 2023 - 50KM Trail LCDC

50K

50 KM
2000 M+

07:55:20

51 / 122

46 / 103

10.09.2022

Bromont Ultra 2022 - 80km

100K

80.2 KM
3510 M+

09:48:04

12 / 172

11 / 140

Statistics

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

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