Italy · Veneto
Distance
103 km
Date
Entry fee
€150
€ / km
€1.46
Dolomiti Extreme Trail 103km: The Ronda delle Cime, Measured
Dolomiti Extreme Trail 103 km — the 'Ronda delle Cime' (Ring of Peaks) — is a night-start Dolomites ultra held in Forno di Zoldo, Veneto, Italy, on June 12–13, 2026, starting at 22:00 and circling the peaks of the Zoldo valley within the UNESCO Dolomites World Heritage Site. The course covers 103 km with 6,400 m of gain (62 m/km) — 38th most elevation-dense of 383 measured courses in the DTR database.
Passes include Monte Rite (2,180m) at km 80, home to the Reinhold Messner Mountain Museum, and the infamous Calada descent — 527m over 2.1 km at −25.5% average — at km 85, requiring rope-assisted descent on technical Dolomite rock. The average uphill gradient of 15.8% ranks 53rd of 390 in the DTR database. 12km of the course exceeds 20% gradient; the opening 10km includes two climbs above 60% maximum gradient.
Dolomiti Extreme Trail entry costs €1.75/km (€180 until April 2026). Venice Airport (VCE) 2–3 hrs by car. UTMB: 5 points. Founded 2016 / 270 finishers 2025. Suits highly experienced alpine ultra runners seeking technical Dolomite terrain and UTMB qualification.
Elevation and Terrain
Total Meters
6,400m
D+/KM
62.1m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
15.8%
Avg Downhill Gradient
-16.2%
Uphill gradient distribution
| 2–5% | 7.9 km | |
|---|---|---|
| 5–10% | 9.4 km | |
| 10–15% | 7.3 km | |
| 15–20% | 5.3 km | |
| 20%+ | 12.0 km |
Route Profile
AnalysedTerrain breakdown
| 42.1% | Uphill |
|---|---|
| 16.9% | Flat |
| 41.0% | Downhill |
Terrain
Dolomiti Extreme Trail – 103 km 103km Top Climbs
Top Climbs
| 1 | 3.6 km · 578 m gain starts km 75 · avg 16.2% · max 50.9% |
|---|---|
| 2 | 4.3 km · 565 m gain starts km 7 · avg 13.3% · max 70.4% |
| 3 | 3.7 km · 505 m gain starts km 3 · avg 13.6% · max 61.7% |
Top descents
| 1 | 4.9 km · 639 m drop starts km 78 · avg -13.1% · max -62.7% |
|---|---|
| 2 | 2.1 km · 527 m drop starts km 86 · avg -25.4% · max -100.1% |
| 3 | 4.3 km · 504 m drop starts km 18 · avg -12.0% · max -44.7% |
How Hard Is the Dolomiti Extreme Trail 103km? (Top-10% Elevation Density and What the Calada Actually Is)
How Hard Is the Dolomiti Extreme Trail 103km?▼
Among the most technically demanding 100km races in the DTR database. The course covers 103km with 6,400m of gain — 62m per kilometre, ranking 38th of 383 measured courses for elevation density (top 10%). The average uphill gradient is 15.8% (53rd of 390 — top 14%). The first 10km includes two climbs with maximum gradients above 60%, run in darkness from a 22:00 start. At km 85, the Calada descent drops 527m over 2.07km at -25.5% average — requiring ropes on Dolomite rock. Race reports describe 'climbing with hands' and 'hanging from ropes over cliff faces.'
The Calada: The Dolomiti Extreme Trail 103km's Most Notorious Descent Section
What is the 'Calada' at the Dolomiti Extreme Trail?
▼
The Calada is the race's most notorious section — a descent of approximately 527m over 2.07km at -25.5% average gradient at km 85, requiring rope-assisted descent on technical Dolomite rock. The official course notes flag it for 'extreme caution.' Runner reports describe lowering over cliff faces using fixed ropes. It arrives at km 85 of a 30-hour race — when fatigue is maximum.
Dolomiti Extreme Trail 103 km Entry Fees and Registration Tiers: A Moderately Priced UNESCO Qualifier
How much does the Dolomiti Extreme Trail 103km cost?
▼
€180 until April 30, 2026; rising to €195 in May 2026. At €1.75/km, moderately priced for a UTMB 5-point qualifier in UNESCO World Heritage terrain. Group discounts: 5% for 6–10 members, 10% for 11+.
Dolomiti Extreme Trail 103km: UTMB Points and Europe Trail Cup Status
Is the Dolomiti Extreme Trail 103km a UTMB qualifier?
▼
Yes — the DXT 103km awards 5 UTMB points. It is part of the Europe Trail Cup championship. The 55km sibling sold out; the 103km is not sold out as of the research date.
Dolomiti Extreme Trail 103 km: Venice Airport, Limited Public Transport, and Getting to Forno di Zoldo
How do I get to the Dolomiti Extreme Trail start in Forno di Zoldo?
▼
Venice Airport (VCE) or Treviso Airport (TSF) are the nearest airports — both approximately 2–3 hours by car to Forno di Zoldo in Val di Zoldo. Public transport is limited; a hire car is strongly recommended. Mountain village accommodation is limited — book early.
Dolomiti Extreme Trail – 103 km 103km GPX
Getting to Dolomiti Extreme Trail – 103 km
Nearest airport
Venice (VCE) / Treviso (TSF)
Notes
Start: ~2–3 hrs (car) / Public transport: Limited; car strongly recommended / Accommodation: Mountain villages; limited inventory—book early
