Zagori Mountain Running Challenge -- TeRA 60km -- is a 60km mountain ultra held annually in mid-July in the Zagori region of Epirus, northwestern Greece. The 2026 edition is the 15th, a measure of the event's deep roots in one of Greece's most celebrated mountain landscapes. The course gains 3,950m D+ over 60km (65.8 m/km elevation density, among the highest in the DTR database), with a 15-hour time limit and a 05:00 start designed to keep runners out of midday heat. UTMB Index 100K and entry at 33 EUR (0.55 EUR/km) make it one of the most affordable qualified ultras in Europe.
The gradient profile is among the most extreme in the DTR database for any 60km race: 17.9% distance-weighted average uphill gradient and -19.3% DW average downhill -- both UPPER tier (15%+), and both the highest in this processing batch. Only 11.7% of the course is flat, the lowest flat percentage in this batch. The race opens with a 1,262m cold-start climb from km 0, then at km 18.48 delivers the Vradeto Steps -- a medieval stone staircase rising 662m at 26% average gradient, the steepest named section in this batch.
The Zagori landscape is genuinely exceptional: UNESCO-recognised Vikos Gorge (one of the deepest gorges in Europe), traditional stone-arch bridges, Dragon Lake at 1,970m, and Vikos-Aoos National Park. In 2024, 2,800+ athletes from 35 countries came for race weekend -- the largest mountain running event in Greece. For runners who want the steepest gradient numbers in this processing batch, a legendary course landmark, and a deeply cultural Greek setting, TeRA 60km delivers all three at 0.55 EUR/km.