What this is
UP RUN Shin-Yokohama Marathon is a community running event organized by UP RUN, held along the flat, scenic Tsurumi River course in Shin-Yokohama. The event offers three race distances — half marathon, 10km, and 5km — making it accessible to runners of all abilities, from first-timers to seasoned athletes. All participants are timed using automatic chip measurement, giving the event a competitive yet welcoming feel. UP RUN is a well-established series of grassroots road races held at multiple locations across Japan, known for their approachable format and inclusive atmosphere.
Who should go
This event is ideal for recreational runners looking for a low-pressure race experience with official timing, as well as more competitive runners seeking a flat, fast course for a personal best attempt. Families are well catered for with a parent-child 5km category, making it a great outing for active households. The Tsurumi River course is flat and beginner-friendly, so anyone considering their first timed race will feel comfortable here. Book early to take advantage of the early-bird discount, which applies to registrations made more than one month before race day.
Good to know
Registration is handled through the UP RUN official website; foreign credit cards are generally accepted for online entry, though the registration form is in Japanese so a translation tool may be helpful. There is no convenience store ticket pickup for this type of event — your race bib is collected on the day at the venue. Shin-Yokohama Station Front Park is a compact urban park directly accessible from Shin-Yokohama Station, so no additional transport is needed once you arrive in the area. September in Yokohama is typically hot and humid, so hydration is critical — bring a water bottle for before and after your race, as on-course support at smaller UP RUN events may be limited. Cash is recommended for any on-site purchases or late registration fees.
This event was sourced and translated from Japanese by What's On Japan. Details may change — verify with the official source before attending.