By SETH ROBSON AND HANA KUSUMOTO | STARS AND STRIPES Published: December 17, 2020 YOKOTA AIR BASE, Japan One second separates a swimming instructor at the home of U.S. Forces Japan in western Tokyo from his dream of representing Japan at next year’s Olympic Games. Shotaro Shimazaki, 27, of Ome, Japan, has been swimming since age 6 and teaches intermediate and expert adult swim classes at the Yokota Natatorium. The speedster doesn’t brag, according to his colleagues, but he’s a competitive breaststroker and plans to enter trials in April that will determine who competes for Japan at the summer games in Tokyo.