Austria · Salzburg
Distance
84 km
Date
Entry fee
€159
€ / km
€1.89
Grossglockner Ultra-Trail OTT (Osttirol Trail) is an 84 km high-alpine trail race held on July 25, 2026, part of the Grossglockner Ultra-Trail weekend (July 24–27) based in Kaprun/Zell am See, Austria. The course starts at Enzingerboden (1,483m), crosses three mountain passes above 2,500m, traverses at least three snowfields, and passes 9 glaciers in the Hohe Tauern National Park, with high altitude maintained for over two-thirds of the route. Total gain: 5,000m (59.5 m/km).
The 17.4% distance-weighted average uphill gradient places this race in the top 1–2% of the DTR database — between Mestia Ultra (14.8%) and the Olympus Ultra (19.2%). The biggest descent runs 17.3km dropping 1,791m — likely the longest sustained descent in the database. Entry costs €190 (€2.26/km at current pricing). Salzburg (SZG) is 81 minutes by road. Title-sponsored by The North Face and running since 2015, with the 2025 edition cancelled mid-race due to severe weather. It suits technically experienced alpine runners who understand glaciated routes and the real risk of weather-forced cancellation.
Total Meters
5,000m
D+/KM
59.5m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
17.4%
Avg Downhill Gradient
-15.9%
| 2–5% | 5.1 km | |
|---|---|---|
| 5–10% | 6.3 km | |
| 10–15% | 4.8 km | |
| 15–20% | 3.9 km | |
| 20%+ | 10.0 km |
| 36.4% | Uphill |
|---|---|
| 18.5% | Flat |
| 45.1% | Downhill |
| 1 | 7.5 km · 907 m gain starts km 23 · avg 12.1% · max 111.5% |
|---|---|
| 2 | 6.0 km · 826 m gain starts km 0 · avg 13.8% · max 71.9% |
| 3 | 4.1 km · 726 m gain starts km 32 · avg 17.8% · max 51.1% |
| 1 | 17.3 km · 1,791 m drop starts km 50 · avg -10.3% · max -88.3% |
|---|---|
| 2 | 3.8 km · 583 m drop starts km 8 · avg -15.5% · max -82.4% |
| 3 | 3.1 km · 549 m drop starts km 80 · avg -18.0% · max -66.6% |
The OTT (Osttirol Trail) is 84km with 5,000m gain; the GGUT (Grossglockner Ultra-Trail) is 110km and is the flagship distance. The GGT at 57km is the shorter option. All three distances start from the same race base in Kaprun/Zell am See and share the same North Face-sponsored festival infrastructure.
€190 from June 1, 2026 (the €170 early-bird window has closed). Registration closes July 23, 2026 — there is no late registration. No additional fees on the Datasport platform are flagged.
The race weekend runs July 24–27, 2026. The OTT 84km starts on July 25. Based at Kaprun/Zell am See in Austria.
Salzburg (SZG) is the primary option at approximately 81 minutes by road. Munich (MUC) and Innsbruck (INN) are also viable at 90–120 minutes. Public transport is excellent — train to Zell am See with a bus connection to Kaprun. Accommodation in the Zell am See/Kaprun area books quickly in peak July season.
Among the hardest 84km races in Europe by gradient. The course covers 84km with 5,000m of gain (59.5 m/km — more than UTMB Mont-Blanc), a 17.4% distance-weighted average uphill gradient (top 1–2% of the DTR database), and only 18.5% flat terrain. The biggest descent runs 17.3km dropping 1,791m. Three passes above 2,500m, nine glaciers, and mandatory snowfield crossings add genuine high-alpine technical risk. The 2025 edition was cancelled mid-race due to weather. A 23-hour time limit applies.
Nearest airport
Salzburg (SZG) / Munich (MUC) / Innsbruck (INN)
Notes
Start: ~1.5–2.5 hrs to Kaprun/Zell am See / Public transport: very good (train to Zell am See + bus) / Accommodation: strong in Zell am See/Kaprun; book early (summer)
Ibiza Trail Maratón 48 km
Exclusive Discount - use ITMF-DISCOVERTRAIL26 CODE for 50% at checkout
