The UPRUN Futako Shinchi Half Marathon is a running event in Kawasaki, Kanagawa, held regardless of weather, with its reception at Suwa Ikoi no Hiroba near Futako-Shinchi Station. Taking place in late May, it runs from morning into early afternoon, offering paid race categories with automatic timing for runners seeking an official measure of their finish time.
The course follows the Tamagawa riverbank and riverbed, a flat route with no elevation changes and open river air. Regular runners, athletes, and those who wish to race alongside others participate, while the organizers aim to keep the event accessible and connected to the local area. The Sports Mate Run Executive Committee organizes the race, and this edition marks the 25th running of the Futako Shinchi event.