The 2020 Tokyo Summer Olympics will be a compact games, with roughly 75 percent of the sports venues within 8 km of the Olympic Village, according to the official plan.

"The biggest selling point in Tokyo's plan is 'Athletes First' — compactness in the placement of the Olympic Village and the venues," Nobumoto Higuchi, acting secretary-general of the Tokyo 2020 Council said in July.

According to Tokyo's plan, 28 of the 37 sports facilities will be within 8 km of Olympic Village, which will sit on a 44-hectare patch of mostly landfill on the Harumi waterfront area in Chuo Ward.