Race calendar and resultsAll rounds were held in Japan and supported the [2020 2020 Super GT Series|Super GT Series|Super GT] events. On 18 March 2020, the original opening round at Okayama International Circuit was postponed to an undetermined date due to the 2019-20 coronavirus pandemic. On 30 March 2020 it was determined the second and third rounds also had to be postponed. On 5 April 2020 the Super GT Series issued a revised calendar in which the F4 Japanese Championship also confirmed their schedule change, with a newly revised calendar being issued on 17 July 2020.
Championship standingsPoints were awarded as follows:
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | | Points | 25 | 18 | 15 | 12 | 10 | 8 | 6 | 4 | 2 | 1 |
Drivers' standings‡ – Half points were awarded for race 2, as less than 75% of the scheduled distance was completed.
Independent Cup‡ – Half points were awarded for race 2, as less than 75% of the scheduled distance was completed.
Teams' standingsOnly the best finisher scored points for a team.
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