[5] He played on the Setanta team that won the 2022 Ulster Junior Club Hurling Championship, scoring 0–10 (0–5 of which were frees) in the final.
[3][10][11] Donegal also defeated Armagh in the closing game of that league campaign, with Coulter contributing 2–1 (including one penalty) to the three-point victory over his former side.
[15][16] He put in a man of the match performance and scored 1–6 from play, despite not being an actual All-Star and being in the presence of hurlers from teams ranked above any across Ulster.
[16][17][15] Martin Breheny, in the Irish Independent, wrote that Coulter, having outscored teammates of the calibre of Séamus Harnedy (Cork) and Graeme Mulcahy (Limerick), had "made a major statement on behalf of hurlers from lower-ranked counties".
[19][20][21] Having spent several years living in Dublin, Coulter settled in the Finn Valley area of County Donegal.