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North America

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

16 - 18 April 2026

09 - 12 April 2026

Asia

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

10 - 12 April 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

Marcus BOONSTRA

Marcus BOONSTRA

Nationality

Netherlands

Age

50-54 Men

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Marcus BOONSTRA

Club

Bro4ever

Team

Bro4ever

Sponsor(s)

Nike ACG

About the runner

New to Trail Running. GDMBR 2027

UTMB Index

Index

20K

50K

100K

100M

276

278

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Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

04.12.2026

Istria 100 by UTMB®️ 2026 - 21K

20K

21.5 KM
157 M+

03:28:30

402 / 412

211 / 213

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

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