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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

01 - 03 October 2026

08 - 11 October 2026

13 - 15 November 2026

26 - 28 September 2025

Asia

06 - 08 March 2026

14 - 15 March 2026

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

16 - 18 October 2026

06 - 08 November 2026

10 - 12 December 2026

29 November - 07 December 2025

14 - 16 November 2025

17 - 19 October 2025

South America

18 - 22 March 2026

26 - 28 June 2026

31 July - 02 August 2026

17 - 20 September 2026

18 - 22 November 2026

Africa

29 - 31 May 2026

MYUTMB

Ireneusz OSTASZEWSKI

Nationality

Poland

Age

50-54 Men

UTMB Index

Index

20K

50K

100K

100M

449

-

447

420

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

10.04.2025

Bison Ultra-Trail® 2025 - Bison Ultra-Trail 100

100K

106 KM
1250 M+

13:32:58

154 / 272

128 / 215

07.18.2025

Lower Silesian Mountain Runs Festival 2025 - K B L - 110 km

100K

110 KM
3670 M+

21:16:45

224 / 373

178 / 278

10.05.2024

Bison Ultra-Trail® 2024 - Bison Ultra-Trail® 100

100K

106 KM
1250 M+

13:47:28

116 / 185

98 / 149

04.20.2024

Pieniny Ultra-Trail 2024 - Dziki Groń

50K

64.6 KM
3200 M+

11:33:54

279 / 358

220 / 277

10.07.2023

Bison Ultra-Trail® 2023 - Bison Ultra-Trail® 100

100K

106 KM
1250 M+

14:42:31

113 / 178

99 / 152

04.02.2023

International Mountain Relay - Kudowski Running Festival 2023 - O/Błędny Maraton

50K

41.5 KM
2010 M+

06:46:08

106 / 170

95 / 141

10.01.2022

Bison Ultra-Trail® 2022 - Bison Ultra-Trail 100

100K

104.2 KM
1200 M+

14:36:13

103 / 139

92 / 123

05.22.2021

Ultramaraton Jaga-Kora 2021 - Ultramarathon Jaga Kora 70km

50K

68.2 KM
1980 M+

10:36:50

38 / 50

32 / 39

03.21.2021

Zimowy Maraton Bieszczadzki 2021 - ZiMB 43K

50K

42.5 KM
1110 M+

05:31:15

159 / 278

138 / 225

10.10.2020

VIII Hyundai ultraMaraton Bieszczadzki 2020 - uMB 52K

50K

52.5 KM
2250 M+

09:01:20

258 / 429

212 / 324

Statistics

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

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