Koki Ogawa led the J.League's 22-club second flight with 26 goals, 10 more than any other player, igniting his team's return to J1 next season.
The Reds, who were tournament runners-up in 2019, jumped out to a 2-0 lead by halftime against Thai opponent BG Pathum United and cruised to victory.
Prosecutors are investigating whether Aoki Holdings, Inc. and Haruyuki Takahashi, a Tokyo 2020 marketing official, engaged in unethical business practices.
Led by an explosive offense, Marinos look poised to claim their fifth J.League title this fall.
The Nigerian forward, who had four goals in the season’s third month, is tied for the league lead in goals.