| Dates | Event name | Location |
|---|---|---|
| 28 Sep 2025 | Irish Blitz and Rapid Championships 2025 | Stillorgan Talbot Hotel, Co Dublin |
| 3–5 Oct 2025 | The 33rd Cork Congress 2025 | Clayton Hotel Cork City, 10 Lapp's Quay, Cork, T12 RD6E |
| 3–16 Oct 2025 | FIDE World Youth U14, U16 & U18 Championships 2025 | Durres ,Albania |
| 4 Oct 2025 | Green Chess Flowers Cup | United Arts Club, 3 Upper Fitzwilliam Street, Dublin 2 |
| 4–15 Oct 2025 | European Teams Chess Championship 2025 | Batumi, Georgia |
| 12 Oct 2025 | Solas Irish Cancer FIDE Rapid Tournament | Dublin Road Business Park, Bracklone, Portarlington, Co. Laois, R32 RPX8 |
| 16–19 Oct 2025 | Dun Laoghaire CC 50th Anniversary Champion of Champions | Dun Laoghaire Chess Club |
| 17–19 Oct 2025 | The Eanna Classic 2025 | Collaiste Eanna, Ballyroan, Rathfarnham, Co Dublin |
| 24–27 Oct 2025 | Irish Women’s Chess Championship 2025 | Talbot Hotel Stillorgan, Stillorgan Rd, Stillorgan, Dublin |
| 28 Oct – 8 Nov 2025 | European Youth Chess Championship 2025 | Budva, MNE |
| 31 Oct – 2 Nov 2025 | PLACEHOLDER The Limerick Open 2025 | TBA |
| 7–9 Nov 2025 | PLACEHOLDER The Limerick Open 2025 | TBA |
| 15–16 Nov 2025 | National Arbiters (NA) Course | TBA |
| 21–23 Nov 2025 | Kilkenny Chess Congress 2025 | Kilkenny |
| 14 Dec 2025 | The Eanna Christmas Rapid 2025 | Colaiste Eanna, Ballyroan, Co.Dublin |
| 26–31 Dec 2025 | [PLACEHOLDER] ICU NEW YEAR FESIVAL | Dublin |
| 26–31 Dec 2025 | [PLACEHOLDER] Leinster Junior Championships 2026 | Dublin |
| 27–28 Dec 2025 | Super Rapid 2K25 KlimaX | TBA |
| 1–4 Jan 2026 | [PLACEHOLDER] Leinster Junior Championships 2026 | Stillorgan Talbot Hotel |
| 2–4 Jan 2026 | [Placeholder] The Cork Open [New Weekender] | [Provisional] Mallow, Co. Cork |
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