Tuhia he tomokanga mō tēnei wāhanga - I tohu ia i te Hononga o Amerika i te 2017 World Junior Championships
i Indianapolis, i te wikitoria i te mētara hiriwa i roto i te 4x200 mita relay kāhua noa. I noho a Callan ki te tuawha i te whiringa toa o te 200-mita freestyle kaupapa takitahi.