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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

14 - 15 March 2026

10 - 12 April 2026

30 April - 03 May 2026

18 - 21 June 2026

11 - 13 September 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

11 - 20 April 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

Stefano MAZZAFERRO

Nationality

Brazil

Age

20-34 Men

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UTMB Index

Index

20K

50K

100K

100M

527

-

528

-

-

Races

date

Race

country

Cat.

Distance /
m+

Time

Rank

Gender

Score

07.18.2025

Monte Rosa WalserWaeg by UTMB 2025 - Les sentiers des Valdôtains

100M

122 KM
8200 M+

-

DNF

DNF

06.07.2025

Evolution Itatiaia National Park 2025 - Ultra

50K

64.7 KM
2634 M+

09:34:02

12 / 73

12 / 48

06.24.2023

Trail 100 Andorra by UTMB® 2023 - Trail 50K

50K

50.8 KM
3680 M+

10:33:23

293 / 521

250 / 432

06.11.2022

KTR Serra Fina 2022 - KTR SERRA FINA 25K

20K

26.6 KM
1948 M+

04:31:17

32 / 178

30 / 117

Statistics

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

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