The Greifenseelauf in Uster, Switzerland, is set to make history in 2026 with its 47th edition, expecting a record 16,000 runners—the highest number ever. This iconic event continues to grow, drawing participants from all walks of life. In 2025, a total of 41 runners from the SPORTEGRATION community took part, including 11 unaccompanied minor asylum seekers who embraced the challenge with remarkable enthusiasm. Of these, 30 ran the 10 km race, while 11 tackled the half marathon, showcasing the event’s inclusive spirit.
However, the 2025 edition was not without controversy. Under scorching temperatures nearing 30 degrees Celsius, numerous participants collapsed due to heat exhaustion. Reports indicated that six individuals were hospitalized with circulatory collapse, and criticism mounted over the adequacy of medical support and water stations. Some runners claimed that “every 500 meters someone was lying on the ground,” pointing to overwhelmed aid stations and insufficient water supplies. The organizing committee (OK) defended its preparations, stating that the number of medical emergencies was average given the extreme heat.
A professional runner weighed in on the debate, suggesting that while the OK could improve, the primary responsibility lies with the runners themselves. Proper hydration and pacing are crucial in such conditions. The incident has sparked discussions about safety protocols for future events, especially as the 2026 edition anticipates even more participants. The OK is likely to review its strategies to prevent similar issues, ensuring a safe and enjoyable experience for all.
As the Greifenseelauf prepares for its record-breaking year, it balances the excitement of growth with the imperative of participant safety. The 2026 event promises to be a celebration of endurance and community, but the lessons from 2025 will undoubtedly shape its planning. With thousands expected to line up, the Greifenseelauf remains a highlight of the Swiss running calendar, embodying both the challenges and triumphs of mass participation sports.
Shimanta Das 
