Rio Olympic bronze medalist Hirooki Arai was second and fellow Japanese Kai Kobayashi third in the men's 50-kilometer race walk at the world athletics championships Sunday.Arai finished in a season best of 3 hours, 41 minutes and 17 seconds, edging Kobayashi by two seconds as Japan medaled in the event for the second straight meet.World record-holder Yohann Diniz of France captured the gold medal in a championships record of 3:33:12. The third racer from Japan, Satoshi Maruo, was fifth in 3:43:03. 
With Rio silver medalist Jared Tallent out of the race with a hamstring injury, Arai said…READ FULL ARTICLE
