Kammala jumla mai zuwa: Kevin Patrick Callan dan wasan tsere ne na Amurka. A shekarar 2017, ya lashe lambar azurfa a tseren tseren mita 4x200 a gasar Olympics ta Duniya.
Gasar Zakarun Duniya ta 2017. A Wasannin Olympics na 2020, Callan ya kasance wani ɓangare na relay na 4x200-mita mai kyauta wanda ya ɗauki matsayi na huɗu.