| 19 Apr 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Kilkenny 1 | Porterstown Park |
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| 03 May 2026 | 12:30 | Open | Division 4 | Sandyford 1 | v | Castleknock 1 | Marlay Park |
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| 10 May 2026 | 12:00 | Open | Senior 2 Cup 1| | Balbriggan 2 | v | Castleknock 1 | Jack Harper Ground |
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| 24 May 2026 | 12:30 | Open | Division 4 | Wexford Wanderers 1 | v | Castleknock 1 | Wexford RFC |
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| 30 May 2026 | 17:00 | Open | LHK Insurance Tillain Cup C | Merrion 2 | v | Castleknock 1 | Anglesea Road |
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| 01 Jun 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | North County 2 | Porterstown Park |
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| 07 Jun 2026 | 12:30 | Open | Division 4 | Phoenix 2 | v | Castleknock 1 | Phoenix Park |
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| 14 Jun 2026 | 13:00 | Open | LHK Insurance Tillain Cup C | North County 2 | v | Castleknock 1 | Inch |
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| 21 Jun 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Laois 1 | Porterstown Park |
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| 04 Jul 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Sandyford 1 | Porterstown Park |
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| 05 Jul 2026 | 17:00 | Open | LHK Insurance Tillain Cup C | Clontarf 2 | v | Castleknock 1 | Castle Avenue |
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| 12 Jul 2026 | 12:30 | Open | Division 4 | Laois 1 | v | Castleknock 1 | Stradbally |
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| 19 Jul 2026 | 12:30 | Open | Division 4 | Railway Union 2 | v | Castleknock 1 | Park Avenue |
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| 01 Aug 2026 | 12:30 | Open | Division 4 | Kilkenny 1 | v | Castleknock 1 | Castleblunden |
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| 09 Aug 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Railway Union 2 | Porterstown Park |
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| 15 Aug 2026 | 12:30 | Open | Division 4 | North County 2 | v | Castleknock 1 | Inch |
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| 22 Aug 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Wexford Wanderers 1 | Porterstown Park |
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| 30 Aug 2026 | 12:30 | Open | Division 4 | Castleknock 1 | v | Phoenix 2 | Porterstown Park |
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