La Ultra di Saronno - 100 km

Race completed

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

45.6251° N, 9.0352° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 24 hours 14:24 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. More forgiving than 86% of 100K races. Measured against 214 races of the same distance. Cut-off calculator →

Field size ~18 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 26°C

Night low 17°C

Rainfall Mostly dry

Daylight 15 h 33 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 232 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	100km	18	Francesco Perini · 07:44:17	Elisa Tosi · 09:45:36
2025	100km	9	Ezio Burdino · 10:39:03	Simona Oggero · 11:05:32

The field grew 100% between 2025 (9) and 2026 (18). 33% of the 2026 field were women.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

👟 gear

With road terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of road.

Trail Running Shoes 100 km of road — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps A 24 h limit puts you out there after dark.
Accessories Chafe and blisters end more 100 km races than fitness does.