On 15 April 2016 Main ainzi somumwe vashanu Olympic debutants vari boka vasere vanoshambira kumiririra New Zealand panguva 2016 Summer yeOlympic muRio de Janeiro, Brazil, apo iye vakwikwidzana mune zvose 100m uye 200m Backstroke zviitiko. Main akahwina mujaho wake wevarume wemamita 100 kumusana
kupisa nenguva yemasekonzi 53,99 kuti vakwanise kuenda kumasemifinal. Akapedza ari wechi15 zvachose mumasemifainari aine nguva yemasekondi 54.29, asi haana kufambira mberi kusvika kumagumo. Mumakwikwi evarume emamita mazana maviri kumusana, Main akahwina semunhu wechi 15 akanakisa kuenda kuma semi fainari aine nguva ye1:57.51 zvisinei nguva yake ye1:58.08 yakanga isina kukwana kuti apinde mufainari.