After August, the maximum stadium capacity was 50%, and it would be a “high alert spectator match”.
[9] After the 11th J.League extraordinary executive committee on 20 July, it was announced that the "super strict alert audience game" would be extended to 10 August in view of the spread of coronavirus infection.
[10] After spending only one season in J2, Kashiwa Reysol were crowned champions and were promoted to 2020 J1 League along with the runners-up Yokohama FC.
Those teams that qualified for promotion playoffs in 2019 were unable to defeat their opponent and thus remained in the 2020 season.
[37] Players from J.League partner nations (Thailand, Vietnam, Myanmar, Malaysia, Cambodia, Singapore, Indonesia and Qatar) are exempt from these restrictions.