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Aosta 21K

May 30, 2027 · 9:00 AMAosta, Aosta Valley, Italy

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Race snapshot

Race Day

66°F

46–63°F · Feels mild

Total elevation gain

66ft

Relatively flat course · Net elevation change +16 ft

Participants

1,800

Medium-sized race

Crowd Rating

5/ 10

Good crowd energy

The Lowdown

Aosta 21K is a flat, certified half marathon through the historic Roman city center of Aosta, capital of Italy's Aosta Valley region, with Alpine views along the Dora Baltea river plain. The 21.0975 km course starts near Via Torino, threads past the former Cogne Acciai Speciali steelworks and the city's ancient monuments, and finishes at the Augustus Arch (Arco d'Augusto). Companion events on race weekend include the Auto Montblanc 10K, the non-competitive CAS Buongiorno Aosta 5K, and a 2K School & Family Game, and the event has been recognized as a low-environmental-impact race by EcoActions Legambiente. After running each May since its debut, organizers paused the 2026 edition to redevelop the event, announcing a return in May 2027. Registration for the 2027 edition has not opened yet.

2024 · Half Marathon (13.1 miles / 21.1 km)

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Minimum Age: 18 years
Entry Methods: Online registration via aosta21k.com (registration for the 2027 edition was not yet open as of Sep 2026)
Eligibility: Must meet FIDAL/RUNCARD minimum age and medical certificate requirements for half marathon distance
Required Documents: Photo ID
Competitive medical fitness certificate (certificato medico agonistico) for Italian-affiliated runners
Cancellation & Refund Policy: Review the official cancellation policy on the organizer's registration page before registering

01: The 2026 edition was skipped; organizers announced a one-year pause to redevelop the event, stating on the official site 'AOSTA21K TORNERA, PIU BELLA CHE MAI, A MAGGIO 2027' (Aosta21K will return, more beautiful than ever, in May 2027)
02: 2025-edition course records were roughly 1:03 for men and 1:14 for women on the flat, certified 21.0975 km course
03: Recognized as a low-environmental-impact event by EcoActions Legambiente
04: Also includes a non-competitive 2K School & Family Game the same weekend

Questions about the Aosta 21K 2027

When is the Aosta 21K 2027?

Sunday, May 30, 2027.

Where is the Aosta 21K?

Aosta, Aosta Valley, Italy.

What time does the Aosta 21K start?

The race starts at 9:00 AM, local time.

What is the Aosta 21K time limit?

3 hours.

How do I enter the Aosta 21K 2027?

Registration has not opened yet. Ways in: Online registration via aosta21k.com (registration for the 2027 edition was not yet open as of Sep 2026).

How much does the Aosta 21K 2027 cost?

Aosta 21K - Half Marathon: €37. Auto Montblanc 10K: €22. CAS Buongiorno Aosta 5K: €10.

What is the Aosta 21K elevation gain?

20 m (66 ft) of total elevation gain. Net elevation change: +5 m (16 ft). Relatively flat course.

What is the Aosta 21K course like?

It passes Arco d'Augusto (Augustus Arch), Historic Roman city center of Aosta and Former Cogne Acciai Speciali steelworks site. Course map

What is the weather like at the Aosta 21K?

Race-day temperatures are usually 8–17 °C (46–63 °F). Feels mild.

How many runners does the Aosta 21K have?

1,800 participants. Medium-sized race.

Prepare for This Race

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