Dee ihe ga-aga n'ihu maka paragraf a - Kevin Patrick Callan bụ onye America na-egwu mmiri asọmpi. N'afọ 2017, o ritere ọlaọcha na 4x200 mita freestyle relay na 2017 World Junior Championships
Ọ dị mma. Na 2020 Summer Olympics, Callan bụ akụkụ nke 4x200-mita freestyle relay nke were ebe nke anọ.