The Greifenseelauf is one of Switzerland’s most beloved road races, returning for its 46th edition on 20 September 2025 in Uster. Runners can choose from three main distances: a 5.5 km fun run, a 10 km race, and the signature half marathon, which loops around the entire Greifensee lake. The course is approximately 60% asphalt and 40% natural trails, providing a flat and fast route through forests, fields, and lakeside paths . The event is family-friendly, with additional youth and kids' races, and supports local charities such as Werkheim Uster . The official registration deadline is 13 September 2025.
Race Date:
20 September, 2025
The Greifenseelauf Half Marathon is scheduled for September 20, 2025, in Uster, Switzerland, and is organized by Markus Ryffel’s GmbH. This beautiful 21.1 km race around Lake Greifensee features a mix of asphalt and natural trails, with an elevation gain of 181 meters and stunning lakeside and countryside views.
Weather based on historical averages.
The Greifenseelauf Half Marathon is scheduled for September 20, 2025, in Uster, Switzerland, and is organized by Markus Ryffel’s GmbH. This beautiful 21.1 km race around Lake Greifensee features a mix of asphalt and natural trails, with an elevation gain of 181 meters and stunning lakeside and countryside views.
The Greifenseelauf Half Marathon is 21km long.
The Greifenseelauf Half Marathon takes place in Uster, Switzerland.
The Greifenseelauf Half Marathon elevation gain is 181 metres, which Runna classifies as a Rolling race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Greifenseelauf Half Marathon is scheduled for September 20, 2025, in Uster, Switzerland, and is organized by Markus Ryffel’s GmbH. This beautiful 21.1 km race around Lake Greifensee features a mix of asphalt and natural trails, with an elevation gain of 181 meters and stunning lakeside and countryside views.
The Greifenseelauf Half Marathon is 21km long.
The Greifenseelauf Half Marathon takes place in Uster, Switzerland.
The Greifenseelauf Half Marathon elevation gain is 181 metres, which Runna classifies as a Rolling race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Greifenseelauf or Markus Ryffel’s GmbH. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Greifenseelauf website.