| 23 Aug |
Athlone Castle Live Chess Battle
Rapid
Abbey Road Graveyard, Athlone
|
Abbey Road Graveyard, Athlone |
| 29–31 Aug |
Ulster Championships 2026
Classical
FIDE-rated
Blackmountain Shared Space, 280 Ballygomartin Road, Belfast, BT13 3NG
|
Blackmountain Shared Space, 280 Ballygomartin Road, Belfast, BT13 3NG |
| 30 Aug |
Dun Laoghaire Rapid 2026
Classical
Dun Laoghaire
|
Dun Laoghaire |
| 4–6 Sep |
City of Dublin 2026
Classical
FIDE-rated
Coláiste Éanna, Hillside Park, Rathfarnham, D16 E248, Co Dublin
|
Coláiste Éanna, Hillside Park, Rathfarnham, D16 E248, Co Dublin |
| 6 Sep |
National Organisers Training Course
Classical
Collaiste Eanna
|
Collaiste Eanna |
| 12 Sep |
3rd Raharney Rapid FIDE Open
Rapid
FIDE-rated
Raharney Chess Club
|
Raharney Chess Club |
| 12–13 Sep |
2nd Cork Junior Chess Championship (U14, U19)
Classical
FIDE-rated
Ballyphehane Community Centre, Cork
|
Ballyphehane Community Centre, Cork |
| 12–13 Sep |
The Cork Open
Classical
FIDE-rated
Ballyphehane Community Centre, Cork
|
Ballyphehane Community Centre, Cork |
| 13 Sep |
2nd Cork Junior Chess Championship (U10)
Rapid
Ballyphehane Community Centre, Cork
|
Ballyphehane Community Centre, Cork |
| 13 Sep |
Sligo Rapid Series - September
Rapid
FIDE-rated
Clayton Hotel Sligo, Clarion Road, Ballytivnan, Ballinode, Co. Sligo, F91 N8EF
|
Clayton Hotel Sligo, Clarion Road, Ballytivnan, Ballinode, Co. Sligo, F91 N8EF |
| 15 Sep |
FIDE RATED Aughamullan Rapid 2026 [78% capacity]
Rapid
FIDE-rated
Washingbay Centre, 92 Ballybeg Road, Aughamullan, Coalisland, County Tyrone, BT71 5DX
|
Washingbay Centre, 92 Ballybeg Road, Aughamullan, Coalisland, County Tyrone, BT71 5DX |
| 15–28 Sep |
46th Chess Olympiad 2026
Classical
Foreign
FIDE-rated
Samarkand, Uzbekistan
|
Samarkand, Uzbekistan |
| 16 Sep – 2 Dec |
Greystones Chess Academy - Autumn 2026 Lessons
Rapid
Dr Ryan Centre, Greystones, Co Wicklow
|
Dr Ryan Centre, Greystones, Co Wicklow |
| 17 Sep – 10 Dec |
Chess Lessons Dublin Chess Club (DCC) 2026
Classical
Dublin Chess Club (Room 9, United Arts Club at 3, Upper Fitzwilliam St., Dublin 2)
|
Dublin Chess Club (Room 9, United Arts Club at 3, Upper Fitzwilliam St., Dublin 2) |
| 19 Sep |
FIDE RATED Coleraine Rapid Championship [9 rounds of 10+5]
Rapid
FIDE-rated
Coleraine Townhall, 35 The Diamond, Coleraine, Northern Ireland, BT52 1DP
|
Coleraine Townhall, 35 The Diamond, Coleraine, Northern Ireland, BT52 1DP |
| 20 Sep |
Quad in Ennis
Classical
Clare Community Bridge Centre (Harmony Row, Lifford, Ennis, Co. Clare, V95 W297)
|
Clare Community Bridge Centre (Harmony Row, Lifford, Ennis, Co. Clare, V95 W297) |
| 22 Sep |
FIDE RATED Moira Autumn Blitz [10 rounds of 3+2]
Blitz
FIDE-rated
Moira Baptist Church, Henry Court, Moira, Northern Ireland, BT67 0NS
|
Moira Baptist Church, Henry Court, Moira, Northern Ireland, BT67 0NS |
| 22 Sep |
Galway September Rapid
Rapid
FIDE-rated
Galway Bridge Centre, Galway H91 C2C3
|
Galway Bridge Centre, Galway H91 C2C3 |
| 25–26 Sep |
FIDE RATED Gold Coast Mini Classic 2026
Classical
FIDE-rated
Bangor Chess Club, 30 Main Street, Groomsport, County Down, Northern Ireland, BT19 6JR
|
Bangor Chess Club, 30 Main Street, Groomsport, County Down, Northern Ireland, BT19 6JR |
| 27 Sep |
4th Sunday Quad, Cork
Classical
FIDE-rated
Ballyphehane Community Centre, Cork
|
Ballyphehane Community Centre, Cork |
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