[1] O'Connor first came to prominence as a hurler and Gaelic footballer with St Peter's College in Wexford.
He played in every grade of hurling and Gaelic football before eventually joining the college's senior teams.
[citation needed] On 27 January 2017, O'Connor scored a point from midfield when St Peter's College defeated Moate Community School to win the Leinster Championship.
[4] O'Connor joined the St Martin's club at a young age and played in all grades at juvenile and underage levels as a dual player.
[6] On 29 October 2017, St Martin's had the chance to achieve the double when they faced Starlights in the Wexford Football Championship final.
[10] On 5 July 2017, O'Connor scored two points from centre-forward when Wexford suffered a 0-30 to 1-15 defeat by Kilkenny in the Leinster final.
[13] O'Connor was added to the Wexford senior team during the 2017 National League but was an unused substitute throughout the campaign.
[14] O'Connor made his first appearance for the Wexford senior team on 23 July 2017 when he lined out at midfield in a 1-23 to 1-19 All-Ireland quarter-final defeat by Waterford.