800 m national champions Rin Kubo and Ko Ochiai lead Japan's team for next month's Lima World U20 Championships, Kubo having just broken the NR with a 1:59.93 and Ochiai just off the NR at Nationals last month with a 1:45.82 in the heats. Sherry Drury is another one of Japan's big U20 hopes and will run the 1500 m, and 2023 National High School Ekiden champion Saku Chosei H.S. dominates the