2021 Super GT Series
The 2021 Super GT Series was a motor racing championship based in Japan for grand touring cars. The series is sanctioned by the Japan Automobile Federation (JAF) and run by the GT Association (GTA). It was the twenty-ninth season of the Japan Automobile Federation Super GT Championship which includes the All Japan Grand Touring Car Championship (JGTC) era, and the seventeenth season under the Super GT name. It was the thirty-ninth overall season of a national JAF sportscar championship, dating back to the All Japan Sports Prototype Championship. TGR Team au TOM's and  drivers Yuhi Sekiguchi and Sho Tsuboi won the GT500 class championships after overcoming a 16-point deficit in the final round of the season. They secured the title after championship leader Naoki Yamamoto of Team Kunimitsu was taken out from a title-clinching position by GT300 class driver Ren Sato with 15 laps remaining in the final race of the season. Driving the new Subaru BRZ, Takuto Iguchi and Hideki Yamauchi won the GT300 class championships for R&D Sport, giving Subaru their first-ever title in Super GT competition. It was also the first drivers' title for both Iguchi and  Yamauchi, and the first for the R&D Sport team. Calendar. A provisional eight-round 2021 calendar was announced on 7 August 2020. Autopolis, Okayama International Circuit, and Sportsland Sugo returned to the calendar after a year's absence. The Fuji GT 500km Race also returned to its traditional calendar slot on the Golden Week holiday of 3-4 May. On 9 February 2021, the planned rounds at Chang International Circuit in Thailand and Sepang International Circuit in Malaysia were cancelled due to travel restrictions. A revised schedule was released on the same day with all eight rounds being held  in Japan, and with the addition of an additional round at Fuji Speedway in November and Twin Ring Motegi in July. On 11 May 2021, the third round at Suzuka International Racing Course, which had been set to take place on 30 May as the third round of the championship, was postponed indefinitely due to a renewed wave of COVID-19 cases in Japan. The race was subsequently rescheduled to 22 August. Results. Drivers credited with winning Pole Position for their respective teams are indicated in bold text. Notes. 1:The race at Suzuka Circuit was still promoted as the third  round of the season, despite taking place after the July race at Twin Ring Motegi and being the fourth race of the season chronologically. Likewise, the July race at Motegi was still promoted as the fourth round of the championship, even though it was now the third race of the season chronologically.