Oiti Ultra Trail is a mountain-running series on Mount Oiti in Phthiotis, Greece, with Ypati as the main start location. The event focuses on long trail distances: the source lists a 150 km course over roughly two days and eight hours, plus a 101.7 km Ultra with 5,265 m of climbing. It takes place over a September weekend, and the Ultra starts late on Friday night from Ypati square.
This is not an entry-level trail race. Runners must be at least 18 and need recent mountain-running experience: either two trail races of 40 km or more with at least 2,100 m of climbing, or one ultra trail race of 60 km or more with at least 3,500 m of climbing. The organizer is the Phthiotis runners’ club “I Trachina,” and the race information notes that aid stations have not been defined for the 150 km listing, which makes practical planning as important as the distance itself.