| 1 | Okayama GT 300 km | 
Calendar changes- The Super GT in Kyushu 300km at Autopolis was scheduled for May 22nd as the third round of the season but was subsequently cancelled in the aftermath of the 2016 Kumamoto earthquakes. On May 20, series organizers announced that the final weekend at Twin Ring Motegi would host two 250 kilometer races, with the race on Saturday being promoted as "Round 3" of the championship as it replaces the Autopolis race.
- The SUGO GT 300km was brought forward to July from its previous date in September.
- The overseas round at Buriram, Thailand was moved from its 2015 date of June to October. The series first visited the circuit in October 2014.
Driver changesVehicle changesDriver ChangesGT500Toyota:
GT300- After participating in selected rounds last year, Ryuichiro Tomita became a full-time driver of the #0 GAINER Nissan GT-R.
- Kota Sasaki drove a second Toyota Prius GT for apr.
- Mitsunori Takaboshi left the series after a successful rookie season with NDDP to drive in Blancpain GT. However, he returned for the fourth race of the season at Fuji Speedway. GT Academy champion and Nissan factory driver Jann Mardenborough joined the NDDP team, partnering Kazuki Hoshino.
- Former Rolex 24 champion Jörg Bergmeister joined Excellence Porsche Team KTR on a full-time basis, after driving two rounds for the team in 2014.
- WEC LMP1 driver Pierre Kaffer drove for Audi Team Braille in his debut GT300 campaign.
- Porsche Carrera Cup Japan champion Yuya Motojima, as well as fellow PCCJ drivers Rintaro Kubo and Hiroaki Nagai, moved to GT300, driving for Team Taisan SARD, Arnage Racing, and apr respectively.
- Shinnosuke Yamada graduated from the F4 Japanese Championship to race for Team Upgarage with Bandoh.
- South African Adrian Zaugg and Japanese-Italian driver Kei Cozzolino made their Super GT debuts for Lamborghini Team Direction.
- Inaugural GT Academy champion Lucas Ordóñez returned to racing in Europe, competing in the Blancpain GT Series for NISMO RJN Motorsport.
- Alexandre Imperatori left Super GT to focus on his World Endurance Championship campaign with Rebellion Racing.
- Former 24h Nürburgring winner Christian Mamerow did not return to the series after running a partial campaign with Audi Team Racing Tech.
- EVA Racing became the primary sponsor of the Rn-sports AMG.
- Gulf Racing merged with Pacific Racing Team to form Gulf Racing with PACIFIC, fielding an all-new Porsche 911 GT3-R.
- Direction Racing changed their name to Lamborghini Team Direction, and also fielded two Huracán GT3s.
- Before the start of the season, an entry was announced for Audi Team Braille, with a new 2016 Audi R8 LMS and veteran World Endurance Championship driver Pierre Kaffer. However, the team never appeared in the 2016 season.
- After withdrawing from the 2015 season, Team Taisan returned to GT300 in alliance with SARD.
Mid-season changesResults| Round | Circuit | Date | Class | Pole position | Race winner | | 1 | 
Championship standings;Scoring system
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | Pole | | Points | 20 | 15 | 11 | 8 | 6 | 5 | 4 | 3 | 2 | 1 | 1 | | Suzuka | 25 | 18 | 13 | 10 | 8 | 6 | 5 | 4 | 3 | 2 | 1 |
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