Adelaide (AUS) - The first race of the IAAF Racewalking challenge is decided only in the final both for the men's and women's 20Km events; the competitions were also valid to assign the title of champion of Oceania and Australian. The men's 20Km race is won by Perseus Karlstrom (SWE) who in 1h20'30'' precedes Marius Liukas (LTU) in the last meters and only one second ; third Yerko Cortes (CHI) in 1h21'31'', fourth and champion of the Oceania, Quentin Rew (NZL) in 1h21'55''. One of the favorit...