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UTMB World Series Events

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South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

North America

09 - 12 April 2026

16 - 18 April 2026

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

Asia

10 - 12 April 2026

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

10 - 12 December 2026

14 - 15 March 2026

06 - 08 March 2026

29 November - 07 December 2025

14 - 16 November 2025

Oceania

14 - 17 May 2026

26 - 28 November 2026

13 - 14 February 2027

Africa

29 - 31 May 2026

MYUTMB

Grzegorz MAZERSKI

Nationality

Poland

Age

45-49 Men

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UTMB Index

Index

20K

50K

100K

100M

444

-

-

444

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

12.13.2025

WINTER TRAIL MAŁOPOLSKA 2025 - WTM 64

100K

65 KM
4030 M+

15:41:15

36 / 44

33 / 38

04.26.2025

Pieniny Ultra-Trail 2025 - Niepokorny Mnich

100K

95.2 KM
4940 M+

18:29:49

190 / 253

163 / 214

10.12.2024

UltraKotlina 2024 - UltraKotlina80

100K

79.5 KM
2540 M+

11:39:42

74 / 136

64 / 109

10.21.2023

Lemkowyna Trail 2023 - LUT100

100K

102 KM
2870 M+

18:05:47

125 / 216

105 / 171

08.13.2022

Chudy Wawrzyniec 2022 - 80km

100K

82 KM
3350 M+

14:19:06

138 / 185

113 / 147

05.27.2022

Festiwal Biegowy ULTRA WAY 2022 - W BLASKU KSIĘŻYCA 100 km+

100K

102.6 KM
1910 M+

13:19:05

16 / 51

15 / 46

12.04.2021

Garmin Ultra Race Gdańsk 2021 - GUR53 GDAŃSK

50K

53 KM
1000 M+

06:09:20

62 / 189

55 / 152

05.15.2021

Lemkowyna Ultra-Trail® - May 2021 - LUT150

100M

148.4 KM
5500 M+

29:26:10

89 / 151

83 / 131

06.06.2020

Festiwal Biegu Rzeźnika 2020 - Bieg Rzeźnika Ultra 105K

100K

107.7 KM
5030 M+

23:52:01

52 / 148

49 / 135

03.07.2020

Zimowy Ultramaraton Karkonoski 2020

50K

57 KM
2410 M+

09:55:14

317 / 391

269 / 326

Statistics

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

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