The Oltner 2-Stunden-Lauf is a two-hour sponsored run in Olten, Switzerland, typically held in September. Participants begin on Kirchgasse in the city center, aiming to complete as many kilometers as possible within the two-hour timeframe. This event functions as a fundraiser, where participants secure sponsors who pledge a specific amount for each kilometer run.
The funds raised support non-profit projects selected by the organizing committee, with allocations divided between a local initiative and an international one. This sponsorship model encourages broad participation beyond individual runners, including school groups, political organizations, associations, families, friends, colleagues, and companies. Some editions also offer a decentralized option, allowing individuals to run for the same causes remotely from the main Olten course during the event period.