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UTMB World Series Events

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North America

09 - 12 April 2026

16 - 18 April 2026

23 - 26 April 2026

15 - 17 May 2026

27 - 28 June 2026

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

Asia

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

02 - 04 October 2026

16 - 18 October 2026

06 - 08 November 2026

13 - 15 November 2026

28 November - 06 December 2026

10 - 12 December 2026

14 - 15 March 2026

06 - 08 March 2026

Oceania

14 - 17 May 2026

26 - 28 November 2026

13 - 14 February 2027

Africa

29 - 31 May 2026

South America

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

20 - 22 March 2026

MYUTMB

Mason RIEMER

Nationality

United States of America

Age

20-34 Men

UTMB Index

Index

20K

50K

100K

100M

471

-

-

-

471

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

09.07.2025

Mogollon Monster 100 2025 - 100 Mile

100M

166.6 KM
5280 M+

32:28:09

54 / 128

50 / 110

07.09.2023

Kendall Mountain Run 2023

20K

19.3 KM
1300 M+

03:14:57

115 / 258

83 / 148

07.09.2023

Silverton Alpine Marathon & 50K 2023 - Alpine 50K

50K

50.9 KM
1420 M+

07:22:07

73 / 141

50 / 87

02.13.2021

Moab's Red Hot 2021 - 55K

50K

54.7 KM
1550 M+

06:36:48

57 / 125

44 / 87

Statistics

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

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