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UTMB World Series Events

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North America

02 - 04 October 2025

09 - 11 October 2025

22 - 23 November 2025

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

27 - 28 June 2026

24 - 25 July 2026

14 - 16 August 2026

26 - 28 September 2025

18 - 21 September 2025

Asia

17 - 19 October 2025

17 - 19 October 2025

17 - 19 October 2025

08 - 09 November 2025

14 - 16 November 2025

29 November - 07 December 2025

06 - 08 March 2026

15 - 17 May 2026

26 - 28 September 2025

19 - 22 June 2025

01 - 04 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 November 2025

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

18 - 21 September 2025

Oceania

27 - 29 November 2025

14 - 15 February 2026

14 - 17 May 2026

Africa

29 - 31 May 2026

MY UTMB

Brendan OBRIEN

Nationality

United States of america

Age

50-54 Men

UTMB Index

Index

20K

50K

100K

100M

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Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

04.15.2023

Desert RATS Trail Running Festival by UTMB 2023 - 100K Alternative 50K

50K

48 KM
1428 M+

07:58:30

48 / 52

38 / 41

09.15.2018

RUN RABBIT RUN 2018 - RUN RABBIT RUN 50 MILE

100K

80.5 KM
2740 M+

13:11:10

115 / 155

78 / 101

07.28.2018

Grand Mesa Ultras 2018 - 55k

50K

50 KM
1700 M+

09:22:13

34 / 45

25 / 33

10.21.2017

Indian Creek Fifties 2017 - 50 Mile

100K

84.1 KM
3520 M+

15:15:00

28 / 30

16 / 17

05.06.2017

Collegiate Peaks Trail Run 2017 - 25Mi

50K

41.4 KM
1150 M+

05:31:59

108 / 162

72 / 100

09.26.2015

The Bear Chase 2015 - BEAR CHASE 50K

50K

50 KM
1180 M+

07:25:32

92 / 112

47 / 57

Statistics

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

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