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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

Mason BOSWELL

Nationality

United States of america

Age

50-54 Men

UTMB Index

Index

20K

50K

100K

100M

540

362

412

539

-

Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

03.24.2025

The Big Alta 2025 - 28K

20K

28 KM
1190 M+

04:08:39

192 / 233

121 / 140

04.15.2024

Gorge Waterfalls 2024 - 50K

50K

49.9 KM
1710 M+

07:53:46

224 / 292

132 / 168

04.14.2024

Gorge Waterfalls 2024 - 100K

100K

98.9 KM
3312 M+

15:35:35

195 / 296

150 / 220

02.25.2024

The Big Alta 2024 - 28K

20K

28 KM
1190 M+

04:28:14

222 / 248

131 / 140

02.24.2024

The Big Alta 2024 - 50K

50K

50 KM
2255 M+

08:29:15

180 / 197

129 / 138

05.20.2023

Cruel Jewel 2023 - Cruel Jewel 100

100M

166.6 KM
7570 M+

32:03:29

24 / 122

22 / 99

04.02.2023

Gorge Waterfalls 2023 - 100K

100K

98.9 KM
3312 M+

14:25:41

102 / 208

76 / 156

10.15.2022

Wild Duluth Races 2022 - Wild Duluth 100K

100K

100 KM
2600 M+

14:26:16

17 / 51

16 / 44

09.11.2022

Mogollon Monster 100 2022 - 100 Mile

100M

166.6 KM
5280 M+

-

DNF

DNF

07.02.2022

Afton Trail Run 2022 - 50KM

50K

49.8 KM
1430 M+

06:01:51

102 / 214

86 / 158

Statistics

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

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