[citation needed] Lowney made his first appearance for the Cork under-21 hurling team on 13 July 2017 when he came on as a substitute for Chris O'Leary in a 2-17 to 1-19 Munster quarter-final defeat of Waterford.
[9] On 4 July 2018, Lowney won a Munster Championship medal following Cork's 2-23 to 1-13 defeat of Tipperary in the provincial final.
[citation needed] In 2017 Lowney was added to the Cork senior hurling team as a member of the extended panel.
[12] After a year away from the panel, Lowney was one of a number of players who were recalled or added to the senior squad prior to the start of the Munster League in December 2018.
[13] He made his first National Hurling League appearance on 27 January 2019 when he was introduced as a 50th-minute substitute for Conor O'Sullivan in a 2-18 to 0-17 defeat by Kilkenny.