Kengo Ida set a new Japanese record in the men's 50-meter butterfly on Tuesday, the opening day of the national swimming championships.Ida clocked 23.27 seconds to defend his title in the final over the non-Olympic distance at Tatsumi International Swimming Center. He trimmed 0.13 second off the previous national record he set at last year's tournament and finished 0.13 second ahead of Takeshi Kawamoto.Missing from this year's national championships is teenage star Rikako Ikee, who was diagnosed with leukemia in February and forced to skip the meet -- which serves as a qualifier for the wor…READ FULL ARTICLE