Yusuke Suzuki broke the Japanese 50-kilometer walk record at the national championships on Sunday, boosting hopes of a record medal haul by the hosts at the 2020 Tokyo Olympic Games.Suzuki, who holds the world record in the 20-km race walk, set the new 50-km mark of 3 hours, 39 minutes, 7 seconds, on the Japan Association of Athletics Federations-approved course at Wajima, Ishikawa Prefecture.The previous record of 3:39:47 was set by Tomohiro Noda last October.Sunday's event also doubled as a qualifier for the world athletics championships to be held in Doha this fall.The International Asso…READ FULL ARTICLE