<prompt> Nyorai mberi kweiyi ndima - Kevin Patrick Callan muzvinabhizimisi wokuAmerica. Muna 2017, akahwina menduru yesirivheri mu4x200-mita freestyle relay pa2017 World Junior Championships  <response>: . Mumitambo yeOlympics ya2020, Callan aive chikamu che4x200-mita freestyle relay iyo yakawana nzvimbo yechina. 