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18 - 21 June 2026

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11 - 13 September 2026

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16 - 18 October 2026

06 - 08 November 2026

13 - 15 November 2026

28 November - 06 December 2026

10 - 12 December 2026

30 April - 03 May 2026

10 - 12 April 2026

14 - 15 March 2026

06 - 08 March 2026

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26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

20 - 22 March 2026

MYUTMB
Erik BIELDERMAN

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Erik BIELDERMAN

Netherlands

50-54 Men

Team

Dudes in the Dunes

20K
Unavailable UTMB Index
100K
Unavailable UTMB Index
100M
Unavailable UTMB Index

How does the calculation work?

Evolution

Results

2026

March 22

50K

Chianti Marathon Trail

Chianti Ultra Trail by UTMB®

Cat.

50K

country

Distance

46 KM

2000 M+

Time

05:49:44

Rank

445

1027

Gender

383

809

2025

June 21

50K

Pierewaai Summer Trail - 50km Ultra

Pierewaai Summer Trail

Cat.

50K

country

Distance

50 KM

265 M+

Time

06:11:47

Rank

11

21

Gender

9

17

2024

June 29

50K

UTRECHTSE HEUVELRUG ULTRA TRAIL (50KM - Rhenen)

UTRECHTSE HEUVELRUG ULTRA TRAIL

Cat.

50K

country

Distance

53 KM

826 M+

Time

06:41:00

Rank

59

90

Gender

51

74

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

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