Japan Super GT (Super GT)

Japan Super GT (Super GT)

Definition and Historical Background
Super GT is Japan's premier grand touring car championship, standing alongside Super Formula as one of the country's two pinnacle motorsport series. Originally established in 1993 as the All Japan Grand Touring Car Championship (JGTC), the series was officially rebranded as Super GT in 2005 to comply with FIA naming regulations after expanding to international venues. Managed by the GT Association (GTA), it remains one of Japan's most widely followed racing championships.

Class Structure
Super GT features a distinctive multi-class racing format comprising two tiers: GT500 and GT300. Both classes share the track simultaneously whilst competing for separate championship points. The GT500 moniker stems from its historical output baseline of around 500 hp, serving as the flagship technical proving ground for Japan’s "Big Three" manufacturers—Toyota, Honda, and Nissan. Similarly, the GT300 class takes its name from an original 300 hp benchmark, but features a far more diverse grid. This includes homologated customer race cars built to international FIA GT3 regulations—such as the Ferrari 296 GT3, Mercedes-AMG GT3, and Lamborghini Huracán GT3—alongside Japanese domestic machinery like the Toyota GR86 and Subaru BRZ. The two categories are visually distinguished by colour-coded race numbers, windscreen visors, and headlamp tints: white for GT500 and yellow for GT300.

Technical Regulations and Balance of Performance
The GT500 class runs on highly standardised technical regulations. The premier trio—the Toyota GR Supra GT500, Honda CIVIC TYPE R-GT, and Nissan Z NISMO GT500—share common spec components, including the carbon-fibre monocoque, ECU, clutch, dampers, and brake package. Power comes from manufacturer-developed 2.0-litre direct-injection inline-four single-turbocharged engines built to unified regulations. In contrast, the GT300 class accommodates over 13 distinct models with vastly differing performance characteristics, relying heavily on the Balance of Performance (BoP) system to maintain competitive parity across the field.

A key sporting element of the series is the "Success Weight" handicap system. In GT500, cars are penalised with up to 100 kg of ballast based on accrued championship points. However, to maintain safety and vehicle dynamics, not all ballast is applied physically—handicaps exceeding 50 kg are enforced via stepped reductions in the fuel flow restrictor alongside refuelling restrictor diameter adjustments, lengthening pit stop times to penalise front-runners. In the GT300 class, refuelling restrictor sizing serves as the primary performance-levelling measure depending on car classification.

2026 Season Calendar Revisions
The 2026 calendar was originally scheduled for eight rounds across six Japanese circuits and a flyaway round at the Sepang International Circuit in Malaysia. However, ongoing geopolitical and logistics challenges forced the postponement of the Sepang round beyond 2027, trimming the 2026 campaign to seven domestic rounds without a replacement venue. The season flags off on 11–12 April at Okayama International Circuit, followed by Fuji (May), Fuji (August), Suzuka (August), SUGO (September), and Autopolis (October), before wrapping up on 7–8 November at Mobility Resort Motegi. The Fuji and Autopolis rounds will run as 3-hour timed endurance races, whilst the remaining five legs feature standard 300 km sprint formats.

2026 Championship Battle
The GT500 grid remains rock-solid, with Toyota, Honda, and Nissan fielding a total of 15 cars. Toyota commands the largest fleet with six GR Supra GT500 entries, led by defending champions Sho Tsuboi and Kenta Yamashita in the No. 36 au TOM'S machine, who have shown formidable form early on. Nissan's charge is fronted by the No. 12 TEAM IMPUL retaining their 2022 championship-winning duo Kazuki Hiramine and Bertrand Baguette, while No. 23 NISMO features Katsumasa Chiyo partnering Mitsunori Takaboshi, with veteran ace Tsugio Matsuda stepping into the Team Director role following his retirement from full-time driving. Honda mounts its title assault with the new CIVIC TYPE R-GT, spearheaded by ARTA MUGEN's frontline pairing of Tomoki Nojiri and Ren Sato.

After the opening two rounds, the No. 36 crew of Sho Tsuboi and Kenta Yamashita leads the GT500 Drivers' standings with 40 points, followed by No. 14 Nirei Fukuzumi and Kazuya Oshima in second with 24 points, and No. 38 Toshiki Oyu alongside Rikuto Kobayashi in third on 16 points. The GT300 battle is equally fiercely contested, with the No. 56 pairing of João Paulo de Oliveira and Iori Kimura topping the class standings.