I have added this table to help those looking for dates of all trials in Northern Ireland.

I will try to keep it up to date as best I can but please remember it is not official and therefore I can't be held responsible for any inaccuracies within it.

* Provisional Dates
2025 Event Club
Sun 01-Jun-25    
Wed 04-Jun-25
Sat 07-Jun-25 Mountfield Trial Tyrone
Sun 08-Jun-25    
Sat 14-Jun-25    
Sun 15-Jun-25    
Sat 21-Jun-25 Classic Trial Banbridge
Sun 22-Jun-25    
Sat 28-Jun-25
Sun 29-Jun-25    
Wed 02-Jul-25
Sat 05-Jul-25 Summer Trial Mid Antrim
Sun 06-Jul-25    
Sat 12-Jul-25    
Sun 13-Jul-25    
Sat 19-Jul-25    
Sun 20-Jul-25    
Sat 26-Jul-25 British Championship RS
Sun 27-Jul-25 British Championship RS
Sat 02-Aug-25    
Sun 03-Aug-25    
Wed 06-Aug-25
Sat 09-Aug-25    
Sun 10-Aug-25    
Sat 16-Aug-25    
Sun 17-Aug-25    
Sat 23-Aug-25 Jimmy Smyth Memorial Mid-Antrim
Sun 24-Aug-25    
Sat 30-Aug-25    
Sun 31-Aug-25    
Sat 06-Sep-25 Trial Tyrone
Sun 07-Sep-25    
Sat 13-Sep-25 Trial Banbridge
Sun 14-Sep-25    
Sat 20-Sep-25 TDN Italy
Sun 21-Sep-25 TDN Italy
Sat 27-Sep-25 Bedford Cup Ards
Sun 28-Sep-25 IC 1 Moran* D&D
Sat 04-Oct-25 UC 1 Lisburn
Sun 05-Oct-25    
Sat 11-Oct-25    
Sun 12-Oct-25    
Sat 18-Oct-25 IC 2 Shaw Knock
Sun 19-Oct-25    
Sat 25-Oct-25 UC 2 Mid Antrim
Sun 26-Oct-25 Halloween* Leinster
Sat 01-Nov-25 IC 3 Turner Ards
Sun 02-Nov-25    
Sat 08-Nov-25 UC 3 Temple
Sun 09-Nov-25    
Sat 15-Nov-25 MRA AGM Ballymac
Sun 16-Nov-25 Octember* Leinster
Sat 22-Nov-25 Irish Experts MRA
Sun 23-Nov-25    
Sat 29-Nov-25 Classic Banbridge
Sun 30-Nov-25 Waters Cup* D&D
Sat 06-Dec-25 Winter Trial Mid-Antrim
Sun 07-Dec-25 Turkey Trial* Leinster
Sat 13-Dec-25 Christmas Trial MTNI
Sun 14-Dec-25    
Sat 20-Dec-25    
Sun 21-Dec-25    
Sat 27-Dec-25 Rusk Memorial Ards
Sun 28-Dec-25 Christmas Trial* MEC
2026 Event Club
Sat 03-Jan-26 Classic Banbridge
Sun 04-Jan-26    
Sat 10-Jan-26 UC 4 N. Monaghan
Sun 11-Jan-26    
Sat 17-Jan-26 Trial Lightweight
Sun 18-Jan-26    
Sat 24-Jan-26 IC 4 Terry Hill Temple
Sun 25-Jan-26    
Sat 31-Jan-26 UC 5 Lightweight
Sun 01-Feb-26    
Sat 07-Feb-26 Charity Mid-Antrim
Sun 08-Feb-26 Manders* D & D
Sat 14-Feb-26 Freddie Hampton Lisburn
Sun 15-Feb-26 IC 5 Stanley Woods* MEC
Sat 21-Feb-26 UC 6 Banbridge
Sun 22-Feb-26    
Sat 28-Feb-26 Trial MTNI
Sun 01-Mar-26 Trial MTNI
Sat 07-Mar-26 UC 7 Knock
Sun 08-Mar-26 Graham Stevens* LMC
Sat 14-Mar-26 UC 8 Ards
Sun 15-Mar-26    
Sat 21-Mar-26    
Sun 22-Mar-26 Trial* Leinster
Sat 28-Mar-26 IC 6 Shane Mid Antrim
Sun 29-Mar-26    
Sat 04-Apr-26 IC 7 Patland* Leinster
Sun 05-Apr-26    
Sat 11-Apr-26    
Sun 12-Apr-26 Montrose Cup* MEC
Sat 18-Apr-26 IC 8 The Vee* Youghal
Sun 19-Apr-26    
Sat 25-Apr-26    
Sun 26-Apr-26    
Sat 02-May-26    
Sun 03-May-26    
Sat 09-May-26    
Sun 10-May-26    
Sat 16-May-26 Nixon Memorial Lisburn
Sun 17-May-26    
Sat 23-May-26    
Sun 24-May-26    
Sat 30-May-26    
Sun 31-May-26    
Wed 03-Jun-26 Summer Trial MTNI
Sat 06-Jun-26 Mountfield Trial Tyrone
Sun 07-Jun-26    
Sat 13-Jun-26    
Sun 14-Jun-26    
Sat 20-Jun-26 Classic Banbridge
Sun 21-Jun-26    
Sat 27-Jun-26 Clubman Classic Lisburn
Sun 28-Jun-26    
Wed 01-Jul-26 Summer Trial MTNI
Sat 04-Jul-26 Summer Trial Mid-Antrim
Sun 05-Jul-26    
Sat 11-Jul-26    
Sun 12-Jul-26    
Sat 18-Jul-26    
Sun 19-Jul-26    
Sat 25-Jul-26    
Sun 26-Jul-26    
Sat 01-Aug-26    
Sun 02-Aug-26    
Wed 05-Aug-25 Summer Trial MTNI
Sat 08-Aug-26    
Sun 09-Aug-26    
Sat 15-Aug-26    
Sun 16-Aug-26    
Sat 22-Aug-26 Jimmy Smyth Memorial Mid-Antrim
Sun 23-Aug-26    
Sat 29-Aug-26    
Sun 30-Aug-26    
Sat 05-Sep-26 Trial Tyrone
Sun 06-Sep-26    
Sat 12-Sep-26 Trial Banbridge
Sun 13-Sep-26    
Sat 19-Sep-26    
Sun 20-Sep-26    
Sat 26-Sep-26 Bedford Cup Ards
Sun 27-Sep-26 IC 1 Moran* D&D
Sat 03-Oct-26 UC 1 Lisburn
Sun 04-Oct-26    
Sat 10-Oct-26    
Sun 11-Oct-26    
Sat 17-Oct-26 IC 2 Shaw Knock
Sun 18-Oct-26    
Sat 24-Oct-26 UC 2 Mid-Antrim
Sun 25-Oct-26 Halloween* Leinster
Sat 31-Oct-26 IC 3 Turner Ards
Sun 01-Nov-26    
Sat 07-Nov-26 UC 3 Temple
Sun 08-Nov-26    
Sat 14-Nov-26 MRA AGM* Ballymac
Sun 15-Nov-26 Octember* Leinster
Sat 21-Nov-26 Irish Experts* D&D
Sun 22-Nov-26    
Sat 28-Nov-26 Classic Banbridge
Sun 29-Nov-26 Waters Cup* D&D
Sat 05-Dec-26 Winter Trial Mid-Antrim
Sun 06-Dec-26 Turkey Trial* Leinster
Sat 12-Dec-26 Christmas Trial MTNI
Sun 13-Dec-26    
Sat 19-Dec-26    
Sun 20-Dec-26    
Sat 26-Dec-26    
Sun 27-Dec-26 Christmas Trial* MEC
Mon 28-Dec-26 Rusk Ards