On 5 July 2015, Donnelly won a Leinster Championship medal after scoring two points from play in a 1-17 to 1-15 defeat of Dublin in the final.
[6] Donnelly won a Leinster Championship medal on 5 July 2017 after scoring two points from play in Kilkenny's 0-30 to 1-15 defeat of Wexford in the final.
[7] On 9 September 2017, he scored a point from centre-forward when Kilkenny suffered a 0-17 to 0-11 defeat by Limerick in the All-Ireland final.
[10] On 8 April 2018, Donnelly was selected at left wing-forward when Kilkenny faced Tipperary in the National League final.
[12] Donnelly broke onto the starting fifteen at right wing-forward for the replay a week later, however, he was substituted by Luke Scanlon in the 1-28 to 3-15 defeat.