TU WAS GUTES-Lauf is a charity running day at Pleschingersee in Linz, typically scheduled for a Saturday in May and organized by Round Table 2 Linz. Participants can choose from a hilly 6.5 km run, a 6.5 km Nordic Walking event, or a 5 km race. Shorter 200 meter and 500 meter runs are available for children.
The event's core principle is that entry fees benefit others. All net proceeds are donated to charity, with a significant portion designated for the Multiple Therapeutic Center Linz, which assists children with mobility impairments. Round Table Austria's aid projects, both domestic and international, also receive funding. The event includes activities and entertainment for children, dedicated kids' races, and a tradition reflecting the day's spirit: all children up to 13 receive a trophy, while adults do not.