The Beskydská sedmička, also known as IMOS Beskydská sedmička, is a late-August mountain ultra held in the Czech Beskydy region. Race headquarters are listed in Třinec and Frenštát pod Radhoštěm. The primary route covers approximately 100 km with around 5,553 meters of elevation gain, though some listings indicate 95 km and 86 km variations. Czech race calendars categorize it as a long-distance hike, reflecting its nature as a full-day, often overnight, undertaking across steep terrain, rather than a short trail run.
The name translates to “Beskydy Seven,” referencing the race’s objective of crossing seven summits within the Beskid mountains. The event’s website provides comprehensive details on rules, pre-race instructions, transportation, and aid station locations, highlighting the importance of logistics alongside physical conditioning. With results and photo archives spanning numerous editions, the race has a significant history, with a 17th edition documented. It is also recognized in the UTMB Index, attracts over a thousand finishers, and features a predominantly Czech field at the front, where recent winning times for the full course hover around eleven hours.