Miguel Arsénio
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.
UTMB Index
904
Birth Date
November 22, 1996
Birth Place
Almeirim, Santarém, Portugal
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