Skip to Content

UTMB World Series Events

Select the event you're interested in

Register to discover the race

Oceania

15 - 16 February 2025

15 - 18 May 2025

27 - 29 November 2025

Asia

01 - 02 March 2025

11 - 20 April 2025

01 - 04 May 2025

16 - 18 May 2025

19 - 22 June 2025

05 - 08 December 2024

15 - 17 November 2024

08 - 10 November 2024

17 - 20 October 2024

11 - 13 October 2024

South America

18 - 22 March 2025

19 - 21 June 2025

01 - 03 August 2025

18 - 21 September 2025

North America

11 - 13 April 2025

25 - 26 April 2025

28 - 29 June 2025

25 - 26 July 2025

19 - 21 September 2025

27 - 28 September 2025

02 - 04 October 2025

10 - 11 October 2025

Africa

22 - 26 May 2025

MY UTMB

Ronald ZUIDHOF

Nationality

Netherlands

Age

40-44 Men

Connect to claim this page

UTMB Index

Index

20K

50K

100K

100M

489

487

453

427

-

Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

10.26.2024

Grizzly100 2024 - Bear Trail 83km

100K

82.6 KM
2560 M+

12:01:51

35 / 74

31 / 61

08.10.2024

Trail Des Fantômes 2024 - 48km

50K

48 KM
2030 M+

06:58:31

59 / 146

51 / 119

07.27.2024

Veluwse Ultra Trail 2024 - Veluwse Ultra Trail 50km Noord

50K

50 KM
330 M+

05:54:43

13 / 58

12 / 50

11.26.2023

UTRECHTSE HEUVELRUG ULTRA TRAIL WINTER 2023 - Utrechtse Heuvelrug Ultra (50km - Amerongen)

50K

50 KM
450 M+

07:04:48

29 / 40

25 / 31

11.25.2023

UTRECHTSE HEUVELRUG ULTRA TRAIL WINTER 2023 - Utrechtse Heuvelrug Ultra (50km - Austerlitz)

50K

50 KM
350 M+

06:00:00

39 / 71

33 / 56

10.28.2023

Helipad Ultra 2023 - Helipad Ultra 50km

50K

50 KM
850 M+

07:01:49

5 / 16

4 / 13

08.27.2023

Veluwse Ultra Trail 2023 - Veluwe Ultra Trail 50 Noord

50K

50 KM
330 M+

06:16:00

47 / 66

38 / 50

08.12.2023

Ultra Trail des Sources 2023 - Ultra Trail des Sources 80K

100K

79 KM
2361 M+

12:28:50

127 / 142

115 / 126

05.05.2023

UTVV SLOVENIA Ultra trail Vipava Valley 2023 - 170 km - EMPEROR

100M

170.2 KM
6800 M+

-

DNF

DNF

03.26.2023

LEERSUMSE VELD TRAIL 2023 - LEERSUMSE VELD ULTRA

50K

50 KM
550 M+

06:56:57

43 / 44

35 / 36

Statistics

Filter by UTMB INDEX

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

Join us

Sponsorship

Race Organisers

Jobs

Stay in Touch

FAQ and Help

Contact Us

Follow us

Terms & conditions

Privacy Policy

©2024 UTMB® all rights reserved. Ultra-Trail® and UTMB® are registered trademarks..