He played in every grade before eventually joining the senior hurling team and lined out in several Harty Cup campaigns.
On 2 September 2017, McCormack lined out at right wing-forward when Borris-Ileigh faced Nenagh Éire Óg in the North Tipperary Championship final.
On 8 October 2017, McCormack was switched to centre-forward when Borris–Ileigh lined out against Thurles Sarsfields in the Tipperary Senior Championship final.
[7] McCormack made his first appearance for the team on 9 August 2009 when he lined out in goal in Tipperary's 1-21 to 2-16 defeat by Kilkenny in the All-Ireland semi-final.
[13] McCormack was added to the Tipperary senior team in advance of the 2015 National League and was an unused substitute throughout the campaign.
[14] On 13 February 2016, McCormack made his first appearance for the Tipperary senior team when he lined out at right wing-forward in a 1-23 to 0-12 defeat of Dublin in the National League.
[15] He claimed a second successive Munster Championship medal on 10 July 2016 - his first on the field of play - after lining out at right wing-forward in a 5-19 to 0-13 defeat of Waterford in the final.
[18] On 30 June 2019, McCormack scored a point from left wing-forward when Tipperary suffered a 2-26 to 2-14 defeat by Limerick in the Munster final.