17-Year-Old Ko Ochiai 1:44.80 NR to Win National High School Championships 800 m byAdmin23 •July 31, 2024 After missing the men's 800 m national record by 0.07 at last month's National Championships, 17-year-old Ko Ochiai of Shiga Gakuen H.S. made history as the first Japanese man to break 1:45 with a 1:44.80 NR to win today&…