46th Frostbite Road Race 2027 - Yokota Air Base, Tokyo

The 46th Frostbite Road Race takes place on Sunday 17 January 2027 inside Yokota Air Base in Fussa, Tokyo. The organiser's venue is Yokota High School. The half marathon, 5K, children's 2K and family-pair 2K offer a rare chance to run on a US military installation in Japan.

Race-day schedule (JST): Base entry 07:00–10:30, opening ceremony 08:30, 2K categories 09:00, 5K 09:40, half marathon 11:00. These race start times are provisional according to the organiser. The half marathon has a three-hour time limit with a checkpoint near 9K at 12:30. The 5K limit is one hour and 2K limit is 20 minutes.

Registration update — 5 November 2026: The organiser announced on 4 November 2026 that all categories for the 2027 event have reached capacity and normal entries are closed. The original 12 November deadline no longer indicates open places. The organiser says RUNNET “Yuzureru” transfer places may become available; this is not guaranteed entry or a confirmed reopened allocation. Check the official entry-status announcement and RUNNET for any authorised transfer availability. The published fee schedule remains JPY 9,000 half marathon; JPY 6,000 5K; JPY 4,000 kids; JPY 8,000 family pair.

Critical security conditions: Only registered athletes and permitted companions may enter the military base. All visitors require acceptable photo identification and must pass security checks. If you are not a Japanese or US citizen, contact the organiser before registering to verify your eligibility for entry to Yokota Air Base. Do not assume all nationalities will be admitted. No public parking is available.

Race bibs, chips and base entry passes are posted to entrants around early January, so there is no race-day check-in. Registered runners receive an event sweatshirt at the venue, which cannot be mailed afterwards. Half-marathon drinks stations are roughly 5K apart. Online timing results and electronic finisher certificates are provided. Bag drop costs JPY 700 if pre-booked or JPY 1,000 on the day. Use the official 2027 information and ignore the website's separate outdated 2023 late-entry notice.

Official sources: https://yokota-frostbite.com/outline/ and https://yokota-frostbite.com/contact/.