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UTMB World Series Events

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North America

02 - 04 October 2025

09 - 11 October 2025

22 - 23 November 2025

05 - 07 March 2026

09 - 12 April 2026

23 - 25 April 2026

27 - 28 June 2026

24 - 25 July 2026

14 - 16 August 2026

26 - 28 September 2025

18 - 21 September 2025

Asia

17 - 19 October 2025

17 - 19 October 2025

17 - 19 October 2025

08 - 09 November 2025

14 - 16 November 2025

29 November - 07 December 2025

06 - 08 March 2026

15 - 17 May 2026

26 - 28 September 2025

19 - 22 June 2025

01 - 04 May 2025

11 - 20 April 2025

01 - 02 March 2025

South America

18 - 22 November 2025

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

18 - 21 September 2025

Oceania

27 - 29 November 2025

14 - 15 February 2026

14 - 17 May 2026

Africa

29 - 31 May 2026

MY UTMB

Nikolay KAZAKOV

Nationality

Bulgaria

Age

40-44 Men

UTMB Index

Index

20K

50K

100K

100M

395

320

395

-

-

Races

date

Race

country

Cat.

Distance /
mt+

Time

Rank

Gender

Score

09.14.2025

Pirin Ultra 2025 - 38 km

50K

38 KM
3430 M+

12:05:32

169 / 202

135 / 158

08.22.2025

DECATHLON Persenk Ultra 2025 - DECATHLON Wild Boar Ultra

100K

115 KM
4621 M+

-

DNF

DNF

07.19.2025

Tryavna Ultra 2025 - 42km

50K

41.5 KM
1700 M+

06:31:01

179 / 296

148 / 228

07.12.2025

2. Sanct Bernhard Sport Obertauern Trailrun Summit (OTS) 2025 - SPORTSHOP SKIWORLD Marathon Trail 2 Summits

50K

53.2 KM
3021 M+

12:37:53

93 / 112

71 / 84

05.24.2025

Transylvania 100 2025 - 50K

50K

50.1 KM
3160 M+

12:54:53

341 / 385

273 / 307

04.26.2025

Kodzha Kaya 2025 - 42 km

50K

42 KM
2700 M+

-

DNF

DNF

10.12.2024

Eastern Rhodopes Wild Race 2024 - Semi-Wild

50K

38 KM
1260 M+

05:46:57

15 / 39

12 / 24

09.28.2024

K3 ULTRA GOLD BORDER RACE 2024 - GBR85

100K

85.3 KM
3660 M+

-

DNF

DNF

09.22.2024

Pirin Extreme & Pirin Ultra 2024 - Ultra 66km

100K

66 KM
4400 M+

-

DNF

DNF

08.17.2024

DECATHLON Persenk Ultra 2024 - DECATHLON Orehovo Ultra

50K

50.9 KM
2740 M+

11:56:36

113 / 113

90 / 90

Statistics

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

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