SA🇪🇸

Sara Alonso

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Born 1999-04-17Sponsor ASICS Fuji Trail Team
UTMB 799ITRA 797Wins 17Podiums 23

Spanish mountain and trail runner from San Sebastián racing for the ASICS Fuji Trail Team. A former 3,000m steeplechase specialist who discovered mountain running while studying at the University of Lleida, Sara Alonso broke through in 2022 with wins at Transgrancanaria Marathon and Marathon du Mont-Blanc, and returned to the top of the sport in 2025 with victories at Zegama-Aizkorri and SaintéSprint plus a silver medal at the World Mountain & Trail Running Championships in Canfranc.

Race Results

2026
3 races2 wins
3rd
Zegama-Aizkorri/Mendi Maratoia
May 17
43.1km
2,730m+
4:25:51
1st
Calamorro Skyrace
Apr 11
30km
3:25:42
1st
Acantilados del Norte Skyrace
Mar 14
29km
3:00:43
Skyrunner World Series
2025
7 races4 wins
1st
SaintéLyon/SaintéSprint
Nov 29
24km
600m+
1:39:53
3rd
Ledro Sky Trentino
Oct 11
21km
1,700m+
2:25:54
Golden Trail World Series Grand Finale
2nd
World Mountain and Trail Running Championships/Short Trail
Sep 26
44.5km
3,657m+
5:38:15
Silver medal; 60th overall
4th
Ultra-Trail du Mont-Blanc/OCC
Aug 28
57km
3,500m+
5:50:26
1st
Zegama-Aizkorri/Mendi Maratoia
May 25
43.1km
2,730m+
4:27:25
1st
Kobe Trail
Apr 19
21.3km
2:53:57
1st
Arc of Attrition/Arc 25
Jan 25
40km
1,000m+
3:04:55
Inaugural edition
2024
5 races3 wins
1st
SaintéLyon/SaintéSprint
Nov 30
24km
600m+
1:38:11
1st
Puerto Vallarta México by UTMB/50K
Nov 9
49km
5:25:54
2nd overall
1st
Skyrhune
Sep 21
21km
2:13:16
4th
Ultra-Trail du Mont-Blanc/OCC
Aug 29
57km
3,500m+
6:05:15
2nd
Tavignanu Trail
Jul 6
33km
3:53:03
View All 25 Results

Career Highlights

2020: First trail race at Canfranc-Canfranc 16K
2022: Breakthrough year - won Transgrancanaria Marathon, Olla de Núria Vertical, Spanish Mountain Running Championships and Marathon du Mont-Blanc; 3rd overall in Golden Trail World Series
2024: 1st female and 2nd overall at Puerto Vallarta México by UTMB 50K
2025: Won Kobe Trail, Zegama-Aizkorri Mendi Maratoia and the SaintéSprint; silver at the World Mountain & Trail Running Championships - Short Trail in Canfranc; 2nd overall in Golden Trail World Series
2026: Won Arc of Attrition Arc 25 (inaugural edition)

Key Achievements

Zegama-Aizkorri Mendi Maratoia Winner (2025)
Marathon du Mont-Blanc 42km Winner (2022)
World Mountain & Trail Running Championships - Short Trail Silver (2025)
Spanish Mountain Running Champion (2022)
Transgrancanaria Marathon Winner (2022)
Arc of Attrition Arc 25 Winner (2025) - Inaugural edition
SaintéSprint Winner (2025)
Golden Trail World Series - 3rd overall (2022), 2nd overall (2025)

Notable Traits

Former 3,000m steeplechase runner with sub-11:00 PB
Transitioned from track athletics to trail through a university Pyrenees trip
Specialist on short-to-classic mountain distances (20–50K)
Switched from Salomon España to ASICS in late 2022
Studied physiotherapy and sport sciences at Universidad de Lleida