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Europe

22 - 25 January 2026

19 - 22 March 2026

19 - 21 March 2026

09 - 12 April 2026

24 - 26 April 2026

01 - 03 May 2026

14 - 17 May 2026

15 - 17 May 2026

23rd May 2026

11 - 14 June 2026

12 - 14 June 2026

18 - 20 June 2026

24 - 28 June 2026

01 - 05 July 2026

09 - 11 July 2026

10 - 12 July 2026

15 - 19 July 2026

17 - 19 July 2026

24 - 26 July 2026

01 - 02 August 2026

06 - 08 August 2026

24 - 30 August 2026

10 - 13 September 2026

11 - 13 September 2026

18 - 20 September 2026

24 - 27 September 2026

30 - 31 October 2026

30 October - 01 November 2026

07 - 09 November 2025

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

Zach BOLLMAN

Nationality

United States of America

Age

20-34 Men
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UTMB Index

Index
20K
50K
100K
100M

471

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470

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Races

date
Race
country
Cat.
Distance /
m+
Time
Rank
Gender
Score
08.24.2024
Sydney Ultra Marathons 2024 - Sydney Ultra Marathon - 50km
50K
51 KM
1482 M+
06:39:58
37 / 132
27 / 93
03.09.2024
Six Foot Track Marathon 2024
50K
45 KM
1420 M+
06:53:28
830 / 871
584 / 611
11.18.2023
14th Stromlo Running Festival 2023 - SRF30
20K
30 KM
860 M+
03:14:40
148 / 464
116 / 268
05.13.2023
Ultra-Trail Australia™ by UTMB® 2023 - UTA50
50K
50.8 KM
3200 M+
09:10:47
1202 / 1860
832 / 1151
03.25.2023
Noosa Ultra-Trail 2023 - Noosa Ultra-Trail : Out'N'Back
50K
50 KM
876 M+
06:38:03
132 / 258
93 / 176

Statistics

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

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