Portugal · Northern Portugal
Grande Trail Serra d’Arga
Distance
50 km
Date
October 3, 2026
Entry fee
50 EUR
€ / km
€1.00
Portugal’s northern mountains: granite ridges, village charm, and a punchy 100K with real vert.
Elevation and Terrain
Total Meters
2531m
D+/KM
50.62m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
11.9%
Avg Downhill Gradient
-12.2%
Uphill gradient distribution
Route Profile
Analysed 2026-05-01Terrain breakdown
Terrain
Climbs
Top climbs
3.2 km · 442 m gain
starts km 43 · avg 13.8% · max 31.3%
3.4 km · 432 m gain
starts km 0 · avg 12.9% · max 55.1%
5.5 km · 364 m gain
starts km 9 · avg 6.6% · max 31.1%
Top descents
8.5 km · 693 m drop
starts km 28 · avg -8.2% · max -33.1%
5.3 km · 447 m drop
starts km 3 · avg -8.5% · max -27.4%
4.0 km · 417 m drop
starts km 46 · avg -10.0% · max -52.3%
Why the GTSA 50km Is Harder Than Its Distance Suggests
Q: How hard is the Grande Trail Serra d'Arga 50km? A: Seriously demanding for its distance. At 50.6m/km elevation density, 11.89% average uphill gradient, and just 13.3% flat terrain, the GTSA 50km sits close to UTMB in gradient intensity for half the distance. The race opens with a 432m climb from km 0.03 and features near-constant ascending or descending. Wet granite in October adds technical risk throughout.
Course Profile — No Warmup, a Ridge Crossing at km 28, and Wet Granite All the Way Down
Q: Is Grande Trail Serra d'Arga a UTMB qualifier? A: Yes. The 50km is a UTMB 50K Series qualifier and ITRA certified.
€1.00 per Kilometre for a UTMB Qualifier in a Portuguese Mountain Village
Q: How much does it cost to enter Grande Trail Serra d'Arga 50km? A: €50 standard entry — €1.00 per kilometre — one of the most affordable UTMB 50K qualifiers in Europe. Entry rises to €55 from September 12, 2026.
Getting There: Porto, Dem, and a Race Weekend That Includes a Folklore Festival
Q: When does the 2026 Grande Trail Serra d'Arga 50km take place? A: October 3, 2026 — Day 2 of the three-day GTSA trail festival.
Logistics
Nearest airport
Porto (OPO) / Vigo (VGO)
Notes
Start: ~1–1.5 hrs (OPO) or ~1 hr (VGO) by car to Caminha / Public transport: good (train Porto→Viana do Castelo/Caminha) + taxi/bus last-mile / Accommodation: good supply in Caminha/Vila Praia de Âncora/Viana do Castelo; book early
