He went on to be the tied highest wicket taker in the Sheffield Shield competition and continued to impress South Australians, winning the 2020 Bradman Young Cricketer of the Year award.
[2] Double stress fractures in his back interrupted his 2014–15 season,[2] but he was still able to win a premiership with the Tigers' second XI.
[2] Agar was selected to play for South Australia in the under-19 national championships and took ten wickets at an average of 22.60, including an impressive 5/37 against Tasmania.
[7] Australia later pulled out of the world cup,[5] but Agar had played three matches while in the squad in the United Arab Emirates.
[3] His first appearance for South Australia came in the 2016–17 Matador BBQs One-Day Cup, when he made his List A debut on 2 October 2016.
[10] During the tournament, he took eight wickets in five matches, his consistent form earning him a contract with Big Bash League franchise the Adelaide Strikers.
[16] In June 2021, Agar was named in Australia's limited overs squad for their tours of the West Indies and Bangladesh.
[17][18] Agar made his One Day International (ODI) debut on 20 July 2021, for Australia against the West Indies.
[20] In February 2024, Agar was called up to the Twenty20 International squad against the West Indies as a replacement to Josh Hazlewood, although he did not play.