A sea of purple posters at the Narita Airport announces the World Athletics Championships — in both English and Japanese. Banners of Haruka Kitaguchi, Japan’s javelin star, are plastered on the walls of the mazy metro stations in the Japanese capital. On the buildings in Ginza, digital billboards have the Japanese athletics team on display. After a spectator-less Olympics four years ago during the Covid-19 pandemic, Tokyo is geared up to host a global athletics extravaganza beginning on Saturday. It was an emotional memory for Japanese athletics chief Yuko Arimori, who teared up when asked at the opening press conference on Friday what it meant to finally have fans in attendance at the championships. “Sports aren’t just for athletes but for everyone to enjoy,” the former marathon runner said as she recalled being cheered on by fans at her international debut at the 1991 Tokyo World Championships. A poster of Haruka Kitaguchi at the Sendagaya metro station in Tokyo. — Photo by Anushe Engineer The stadium is so...