2021 Super GT Series

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. Circuits and dates ==Teams and drivers==

GT500 GT300 Vehicle changes GT300 Class • INGING Motorsport and Cars Tokai Dream28 merged into a collaborative entry in 2021, known as muta Racing INGING. The team retained the Lotus Evora MC GT300 vehicle, driver Hiroki Katoh, chief engineer Shintaro Watanabe, and the number 2 plate of Cars Tokai Dream28's entry. INGING brought on their Bridgestone tyre contract, title sponsor muta, and driver Ryohei Sakaguchi. • Car Guy Racing returned to Super GT after a two-year absence, partnering with Pacific Racing Team to field a Ferrari 488 GT3 under the Pacific CarGuy Racing banner. Entrant changes GT500 Class • Honda: Honda announced their Super GT driver line-up on On 15 January 2020. • Toshiki Oyu will be stepping up to GT500 to join Team Red Bull Mugen, replacing Hideki Mutoh. Hirokatsu Tanaka replaced Shinji Nakano as team director. • Astemo, a joint venture between Hitachi and Honda, replaced the defunct Keihin brand as title sponsor for Astemo Real Racing. • Nissan: Nissan's GT500 line-up was announced on 18 January 2020. • Nobuharu Matsushita, who made his series debut as a replacement driver for the injured Shinichi Takagi last year, signed with Nissan to compete for Team Impul alongside Kazuki Hiramine. • Daiki Sasaki joined Kondo Racing for the first time since 2016, partnering with Mitsunori Takaboshi. • Jann Mardenborough was not retained by Nissan for the 2021 season. Eneos replaced Wako's as their title sponsor. Alesi was initially signed as the team's third driver, but competed in all eight rounds after Nattapong Hortongkum was unable to enter Japan for a second consecutive year. • 2019 F4 Japanese champion and 2020 French F4 Championship runner-up Ren Sato made his GT300 debut with Autobacs Racing Team Aguri, replacing Toshiki Oyu. • JLOC signed GT500 veteran Kosuke Matsuura and GT300 podium finisher Natsu Sakaguchi to drive their number 87 Lamborghini Huracán GT3. • Super Formula Lights graduate Yoshiaki Katayama made his GT300 debut with Team LeMans with Motoyama Racing. • Tadasuke Makino missed the first race of the season due to meningitis. Hideki Mutoh replaced him at Team Kunimitsu for the first race at Okayama. From the following round at Motegi, Makino returned to the cockpit on a full-time basis. • From the third race of the season at Motegi, TGR Team ZENT Cerumo chief engineer Kotaro Tanaka had taken over as team director from ace driver Yuji Tachikawa. GT300 Class • With Sena Sakaguchi driving in GT500, reigning FIA F4 Japanese Champion Hibiki Taira was called up to replace Sakaguchi at K-Tunes Racing. • Kohta Kawaai missed the fourth race of the season at Suzuka due to a positive COVID-19 test. 2011 GT300 champion Taku Bamba replaced Kawaai at Saitama Toyopet GreenBrave. • 2012 GT300 champion Naoki Yokomizo replaced Takeshi Kimura at Pacific CarGuy Racing for rounds three, four, and seven due to Kimura's driving commitments in the FIA World Endurance Championship. • arto Ping An Team Thailand changed its entry name back to arto Team Thailand after the first two races of the season, after Ping An Insurance abruptly ended its sponsorship of the team. • R'Qs Motor Sports withdrew from the final two rounds after their car was heavily damaged in an accident during the sixth round at Autopolis. ==Results==

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. Drivers credited with winning Pole Position for their respective teams are indicated in bold text. ==Championship standings==

Drivers' championships ;Scoring system GT500 GT300 ==Notes==