GRK says it took a second straight SDC world title in the USA

That line — a win taken with team strength — is how the post itself reads the result, before any individual driver is singled out again. It is a specific thing to claim about a tandem bracket, and it is worth being precise about what it can and cannot mean here.

In a tandem format, each driver leads one run and chases one. The lead car drives the judged line and clipping points; the chase car is scored on matching that line while holding angle and proximity. A teammate who is comfortable in the chase seat of a battle, metaphorically speaking, is a teammate who has spent the day learning the layout's entries and where the car bites — and the material says that is what TAKU was doing before HAYATO's final result.

What the post does not give is the bracket: which rounds either driver ran, who they met, or how the judges scored any individual run. SDC's series is judged with a replay system, and an event's own rulebook overrides any general description of tandem judging, so this piece does not narrate rounds that are not in the source.

The chassis named in the post is the GRK5-R HRP. GRK is the drift RC chassis brand of Shibata Jidosha Co., Ltd. of Sakahogi, Gifu, which built a fine-asphalt RC drift circuit beside its car business in 2010 and released the first GRK in May 2012. The GRK5-R sits in the RWD part of the range, alongside the GRK4, GRK5, GS2 EVO and GS2 Modified.

What the "HRP" designation refers to is not spelled out in the post, and nothing in the maker's product material read here settles it, so it is reported only as the post writes it.

For the base kit's build steps, geometry and the maker's own baseline settings, the GRK5-R documents are collected on the GRK5-R manual page, including the instruction manual and the ver.1.0.0 setup sheet. Nothing in the blog post describes the setup either driver ran at the event — no tyre, no gyro gain, no ride height — and this piece does not fill that in.

The announcement is SHIBATA's post on the R31HOUSE RC blog, published 6 October 2026.

SDC — Super Drift Competition — is Super-G R/C Drift Arena's competition series in Baldwin Park, California, judged with a replay system; the organiser's SDC Worlds 2025 announcement sets out how it has run the event previously. The GRK post says only that this year's world championship was held in the USA; it does not name the venue or dates, and this edition's full event details are not confirmed here.

The post closes with one more result from GRK RACING's year: SHIBATA writes about crying over コウダイ taking the FDJ series championship and again over HAYATO's SDC win.