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UTMB World Series Events

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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

10 - 12 April 2026

30 April - 03 May 2026

18 - 21 June 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

16 - 18 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2025

Africa

29 - 31 May 2026

MYUTMB

Diederick CALKOEN

Nationality

Netherlands

Age

20-34 Men

UTMB Index

Index

20K

50K

100K

100M

735

677

738

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

11.16.2025

TRAIL UEWERSAUER 2025 - 33k Lëlz Trail

20K

33 KM
1240 M+

02:31:43

1 / 326

1 / 257

09.26.2025

WMTRC2025 - World Mountain and Trail Running Championships 2025 - Short Trail 45K

50K

44.5 KM
3657 M+

05:54:08

90 / 283

82 / 171

07.19.2025

Rab Helvellyn Sky Ultra 2025

50K

57 KM
3700 M+

-

DNF

DNF

04.26.2025

MIUT® - Madeira Island Ultra-Trail® 2025 - MIUT 60

50K

55.8 KM
3315 M+

06:16:45

4 / 378

4 / 285

06.02.2024

European Off-Road Championships 2024 - Men Elite Up & Down

20K

16 KM
960 M+

01:30:36

57 / 66

57 / 66

12.14.2019

Trail des Châteaux 2019

20K

25.7 KM
1100 M+

-

DNF

DNF

09.07.2019

LA VEIA SKYRACE 2019 - 31K

50K

29.8 KM
2350 M+

03:19:23

29 / 160

29 / 118

07.21.2019

Royal Race Gran Paradiso 2019 - ROYAL ULTRA SKY MARATHON

50K

55.9 KM
4140 M+

07:47:20

12 / 179

12 / 150

06.08.2019

Abutres Trail World Championships 2019 - TWC 2019

50K

44 KM
2120 M+

-

DNF

DNF

04.27.2019

La Bouillonnante 2019 - La Bouillonnante 50

50K

52.5 KM
2570 M+

04:30:17

5 / 548

5 / 491

Statistics

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

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