On October 11, it was announced that the Saturday practice session for the 2019 Japanese Grand Prix at Suzuka Circuit would be cancelled, and the Saturday qualifying session was postponed to Sunday morning prior to the race. The F4 Japanese Championship cancelled its round at the circuit as well. Despite the games being played indoors in domed stadiums, Nippon Professional Baseball postponed both Game 4 Climax Series games in the 2019 Pacific League Climax Series and the 2019 Central League Climax Series. Both games were planned to take place on Saturday, October 12, one in Tokorozawa, Saitama, and the other in Bunkyō, Tokyo. The games were instead played the next day on Sunday, October 13.