Greifenseelauf in Uster/Greifensee
A team relay race circling Lake Greifensee near Uster, this September event splits roughly twenty-one kilometers across several runners per team, drawing thousands of workplace and club squads from the Zurich region. The closed lakeside loop and frequent exchange zones give it a communal, low-key character distinct from the area's bigger city marathons.
The Greifenseelauf is built entirely around a team relay format, circling Lake Greifensee near Uster with the roughly twenty-one-kilometer distance split across several legs run by a single team, a structure that has made it one of the more popular corporate and club relay events in the Zurich region since it began in the 1970s.