Clontarf are Division 1A champions for the 2021/22 season, Shannon are back in the Energia All-Ireland League's top flight for the first time since 2019, while there was promotion joy for Buccaneers, Blackrock College and Enniscorthy.

ENERGIA ALL-IRELAND LEAGUE – MEN'S DIVISIONAL RUNDOWN:

DIVISION 1A: Final Table All-Ireland League champions: Clontarf (29-23 final win v Terenure College) Relegated: UCC (52-34 aggregate play-off defeat v Ballynahinch) Promoted from Division 1B: Shannon Ten Division 1A clubs for next season: Clontarf, Terenure College, Lansdowne, Cork Constitution, Dublin University, Young Munster, Garryowen, UCD, Ballynahinch, Shannon DIVISION 1B: Final Table Division 1B champions/Promoted: Shannon (30-15 play-off final win v Naas) Relegated: Navan (49-17 aggregate play-off defeat v Banbridge) Promoted from Division 2A: Buccaneers Ten Division 1B clubs for next season: UCC, Naas, Old Wesley, Highfield, St. Mary's College, City of Armagh, Old Belvedere, Malone, Banbridge, Buccaneers DIVISION 2A: Final Table Division 2A champions/Promoted: Buccaneers (18-17 play-off final win v Queen's University) Relegated: Rainey Old Boys (43-30 aggregate play-off defeat v Nenagh Ormond) Promoted from Division 2B: Blackrock College Ten Division 2A clubs for next season: Navan, Queen's University, Cashel, Ballymena, Old Crescent, MU Barnhall, UL Bohemians, Dolphin, Nenagh Ormond, Blackrock College DIVISION 2B: Final Table Division 2B champions/Promoted: Blackrock College (25-23 play-off final win v Greystones) Relegated: Ballina (37-34 aggregate play-off defeat v Galwegians) Promoted from Division 2C: Enniscorthy Ten Division 2B clubs for next season: Rainey Old Boys, Greystones, Belfast Harlequins, Galway Corinthians, Wanderers, Sligo, Dungannon, Malahide, Galwegians, Enniscorthy DIVISION 2C: Final Table Division 2C champions/Promoted: Enniscorthy (41-14 play-off final win v Skerries) Relegated: City of Derry (41-34 aggregate play-off defeat v Clonmel) All-Ireland Provincial League champions/Promoted from junior rugby: Instonians (via play-offs) Ten Division 2C clubs for next season: Ballina, Skerries, Bangor, Tullamore, Midleton, Bruff, Omagh Academicals, Sunday's Well, Clonmel, Instonians ALL-IRELAND PROVINCIAL LEAGUE CHAMPIONSHIP ROUND ROBIN SERIES: Play-Off Results All-Ireland Provincial League champions/Promoted from junior rugby: Instonians (via play-offs)