Furuppi RC's camera puts Kanto RC Masters qualifying on the record at Tsukuba RC Park

The same channel published a second segment from the same event and the same date: the ladies' class final. Taken together, the two uploads show a series that runs separate class ladders rather than a single open bracket — an open class with its own qualifying, and a ladies' class running through to a final on the same card.

How many classes 関東RC MASTERS runs in total, and whether the 27th was a single day or part of a longer meet, is not established by the videos. Neither is the order of the day: an open-class qualifying segment and a ladies' class final both existing on one date tells you the classes overlap on the schedule, not how the running order was set.

The address in the description is one of the better-known buildings in Japanese RC drift. Tsukuba RC Park is Yokomo's own track and headquarters at Yatabe, Tsukuba, Ibaraki, roughly an hour from Tokyo, and it carried the name Yatabe Arena for years before the 2022 renovation that gave it a two-storey main building, an air-conditioned drift course and a separate touring-car track. It is the venue for the Yokomo Drift Meeting and the All Japan E-Drift Championship.

One detail matters for anyone reading a setup sheet from this floor: Yokomo sells springs in a P-TILE (YATABE ARENA) spec, and that spec refers to this surface. P-tile is the interlocking plastic tile many indoor tracks lay down, and it is a different proposition from carpet — tire choice, ride height, spring rate and gyro gain all belong to the surface they were set for. A number copied off a carpet car does not transfer here.

The honest gaps, listed rather than guessed:

• The full name of the series behind 関東RC MASTERS, and who organizes it.
• The complete class list, and the entry requirements for the open class.
• The judging format — whether qualifying was scored on solo runs and what criteria the panel used, and how the battle rounds were run.
• Whether a spec tire applied. Plenty of Japanese events mandate one so entrants cannot buy grip; this one has not published a rule we can cite.
• Results and placings. No driver is named here because no result sheet has been confirmed.

None of that is a criticism of the upload. A camera at the fence is doing its job by recording the segment and dating it; the rule sheet is the organizer's to publish.

Both segments are on the channel that filmed them: the open-class qualifying video and the ladies' class final, credited to Furuppi RC. The qualifying upload is the one with the venue and filming date written into the description, which is why it is the more useful of the two as a record.