Due to the COVID-19 pandemic-related concerns, the Japan Football Association (JFA) opted to postpone the beginning of the season, firstly established for 7 March.
After August, the maximum stadium capacity was 50%, and there would be "high alert spectator matches".
[10] After that, at the 11th J.League extraordinary executive committee meeting on 20 July, it was announced that the "super strict alert audience game" was extended to 10 August in view of the spread of coronavirus infection.
Alongside them, an incredible final day of the 2019 season pushed Kagoshima United FC immediately back to J3, just one year after sealing their first-ever participation to the second tier.
Also, Japan Football League saw the promotion of another club: after two fifth-placed performances, FC Imabari came third in 2019 and booked their first professional season in their history.
FC Tokyo U-23's withdrawal was approved at a board meeting held on 5 June, leaving the J3 League with 18 teams.