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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

12 - 14 June 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

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

Theresa NIELSEN

Nationality

Canada

Age

35-39 Women

UTMB Index

Index

20K

50K

100K

100M

443

-

-

-

444

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

08.08.2025

Fat Dog Trail Race 2025 - Fatdog 120 Mile

100M

199.4 KM
8670 M+

45:32:11

47 / 75

12 / 23

09.07.2019

PINE TO PALM 100 MILE ENDURANCE RUN 2019

100M

155.3 KM
5780 M+

28:23:10

39 / 82

5 / 12

04.12.2019

Zion 2019 - 100 Km

100K

96.8 KM
2270 M+

16:31:38

172 / 254

60 / 95

01.13.2018

HURT 100 2018 - HURT 100 MILE ENDURANCE RUN

100M

161 KM
8200 M+

35:26:38

65 / 78

18 / 24

07.09.2016

Sinister 7 Ultra 2016 - Solo

100M

155.3 KM
4300 M+

27:21:05

34 / 80

8 / 19

09.11.2015

LOST SOUL ULTRAMARATHON 2015 - LOST SOUL ULTRA 100 MILES

100M

161.1 KM
5535 M+

32:53:38

22 / 25

8 / 8

08.15.2015

Fat Dog Trail Race 2015 - 70 Mile

100K

112.1 KM
3774 M+

22:44:25

30 / 43

8 / 16

08.03.2013

The North Face Canadian Death Race 2013

100M

125.5 KM
2590 M+

22:20:30

92 / 148

12 / 25

05.20.2013

BLACKFOOT ULTRA 2013 - BLACKFOOT ULTRA 50K

50K

50 KM
1100 M+

05:54:08

33 / 97

10 / 40

08.18.2012

IRON LEGS 2012 - IRON LEGS 50 MILER

100K

80 KM
3048 M+

12:20:19

41 / 84

10 / 27

Statistics

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

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