【猛暑対策】ピーエスエス皇居健康ランニング令和8年8月8日大会 2026

For 1,000 yen, runners can start and finish near the Clock Tower inside Sakuradamon Gate at Tokyo’s Imperial Palace. PSS Imperial Palace Health Running is a summer morning race and practice session in Chiyoda, with 5 km, 10 km, and 20 km solo options plus a 20 km relay. The 20 km and relay start earlier than the shorter races, and the whole event concludes before midday. Timing is manual, using a stopwatch with a printer, fitting the small, practical feel of an event capped in the low hundreds rather than the thousands. The course uses repeated laps around the Imperial Palace, allowing runners to treat it as a controlled workout as much as a race. Reviews describe it as useful for marathon preparation, pace running, interval work, and checking current fitness, especially because lap times matter and the cutoff rules are strict. Beginners and experienced runners both participate, and the 20 km race is open from age 13. The organizer calls it “Japan’s most relaxed race”: late arrivals are permitted, same-day entry is allowed, runners can change distance on the day, stopping early still gets recorded by distance covered, and even an unlisted distance such as 15 km can be created on the spot.