 Michael Ronald Grenda, OAM akaberekwa musi wa24 Kubvumbi 1964 mutyairi webhasikoro akarega basa uye mutyairi webhasikoro wekuAustralia, akamiririra nyika yake yekuzvarwa kumaOlympics ezhizha ra1984 muLos Angeles, California. Ikoko akakunda menduru yegoridhe mukutsvaka chikwata chevarume mamita 4000, pamwe chete naDean Woods, Kevin Nichols, uye Michael Turtur. Akanga ari mutyairi webhasikoro nyanzvi kubva muna 1986 kusvika muna 1991. Akapedza kudzidza paTasmanian Police Academy muna 2014. 