🇵🇹
Miguel Arsénio
Born
November 22, 1996
UTMB
904ITRA
917Wins
7Podiums
10
Portuguese trail runner who burst onto the international scene in 2023 with his victory at Ultra Pirineu and a runner-up finish at Transgrancanaria. Known as 'Mike Show', Arsénio started trail running in 2019 at age 23 while working at a sawmill in his hometown of Almeirim, after a background in mountain biking where he was a national junior champion. He turned professional in 2024 and won the inaugural Gran Canaria World Trail Majors circuit alongside Courtney Dauwalter.
Race Results
2025
6
races4
wins
Chiang Mai Thailand by UTMB/Elephant 100
Dec 5
96km
4,600m+
Chiang Mai Thailand by UTMB/Inthanon 50
Nov 30
39km
2,200m+
81.2km
5,413m+
Challenge du Montcalm/Trail des Mineurs
Aug 17
15km
850m+
114.8km
5,294m+
117.6km
6,640m+
2024
2
races1
win
Nov 23
100km
4,200m+
2023
3
races2
wins
Sep 30
110km
6,800m+
85km
5,150m+
Feb 25
126km
6,764m+
Key Achievements
Chiang Mai Thailand by UTMB Double Winner (2025) -
Inthanon 50 & Elephant 100
Gran Canaria World Trail Majors Series Winner
(2024)
Swiss Canyon Trail Winner (2024, 2025) - Course
Record 2024
Ultra Pirineu Winner (2023)
Maxi-Race du Lac d'Annecy Winner (2023)
Transgrancanaria Classic 2nd (2023)
Ultra-Trail Cape Town UT100 2nd (2024)
MIUT 115 2nd (2025)
World Championships Long Trail 17th (2025)
Portuguese National Trail Ultra Champion (2022,
2024)
Notable Traits
Known as 'Mike Show' in the trail running
community
Runs for FUGA - SportHG team (Spain) and Runners do
Demo (Portugal)
Sponsored by KAILAS FUGA
Compact build (164cm, 60kg) with exceptional climbing
ability
Started trail running at age 23 while working at a
sawmill
Former national junior cycling champion before
switching to trail
Coached early in career by Pedro Bento
Strong negative splitter with exceptional late-race
surges