| Date | MGA Ireland | IMGA | IPC | MGAGB | MGANI | STRUK |
| Saturday 2 January 2027 | | | | | | |
| Sunday 3 January 2027 | AGM 2.00 – 4pm, Venue Maldron Hotel, Portlaoise | | | | | |
| Saturday 9 January 2027 | | | | | | |
| Sunday 10 January 2027 | | | | | | |
| Saturday 16 January 2027 | | | | | | |
| Sunday 17 January 2027 | | | | | | |
| Saturday 23 January 2027 | | | | | | |
| Sunday 24 January 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 30 January 2027 | | | | | | |
| Sunday 31 January 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 6 February 2027 | | | | | | |
| Sunday 7 February 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 13 February 2027 | | | | | | |
| Sunday 14 February 2027 | MGAI Spring League – Punchestown | | | | | |
| Sunday 21 February 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 27 February 2027 | | | | | | |
| Sunday 28 February 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 6 March 2027 | | | | | | |
| Sunday 7 March 2027 | MGAI Spring League – Punchestown | | | | | |
| Saturday 13 March 2027 | | | | | | |
| Sunday 14 March 2027 | | | | | | |
| Saturday 20 March 2027 | | | | | | |
| Sunday 21 March 2027 | | | | | | |
| Saturday 27 March 2027 | MGAI Easter Teams – Ballindenisk?? | | | | | |
| Sunday 28 March 2027 | MGAI Easter Teams – Ballindenisk?? | | | | | |
| | | | | | |
| Saturday 3 April 2027 | | | | | | |
| | | | | | |
| Saturday 10 April 2027 | North/South shared Island training weekend | | | English Champs | | |
| Sunday 11 April 2027 | North/South shared Island training weekend | | | English Champs | | |
| Saturday 17 April 2027 | | | | X-Zony MGAGB Champs | | |
| Sunday 18 April 2027 | | | | X-Zony MGAGB Champs |
| Saturday 24th April 2027 | MGAI Trials Necarne Home Intl/Euros? | | | Spring Champs |
| Sunday 25 April 2027 | MGAI Trials Necarne Home Intl/Euros? | | | Spring Champs |
| Saturday 1 May 2027 | | | Chester | British individuals | | |
| Sunday 2 May 2027 | | | Chester | British individuals | | |
| Monday 3 May 2027 | | | | British individuals | | |
| Saturday 8 May 2027 | MGAI Masters – Whelans Baltinglass | | | | | |
| Sunday 9 May 2027 | MGAI Masters – Whelans Baltinglass | | | | | |
| Thursday 13 May 2027 | | | | | | |
| Friday 14 May 2027 | | | Windsor | | | |
| Saturday 15 May 2027 | | | Windsor | | | |
| Sunday 16 May 2027 | | | Windsor | | | |
| Monday 17 May 2027 | | | Windsor | | | |
| Saturday 22 May 2027 | MGAI Individual Champs, Bunclody | | | UK Masters |
| Sunday 23 May 2027 | MGAI Individual Champs, Bunclody | | | UK Masters |
| Saturday 29 May 2027 | Belgooly | | | | | |
| Sunday 30 May 2027 | Belgooly | | | | | |
| Thursday 3 June 2027 | | | Bath and West | | | |
| Friday 4 June 2027 | | | Bath and West | | | |
| Saturday 5 June 2027 | | | Bath and West | | | |
| Sunday 6 June 2027 | | | | | | |
| Saturday 12 June 2027 | | | | Home internationals Scotland | | |
| Sunday 13 June 2027 | | | | Home internationals Scotland | | |
| Saturday 19 June 2027 | Cork Show Teams | | Gorey IPC Qualifier | Welsh Champs | | |
| Sunday 20 June 2027 | Cork Show Teams | | | Welsh Champs | | |
| Saturday 26 June 2027 | | | Charleville show | | | |
| Sunday 27 June 2027 | Charleville show | | | | | |
| Saturday 3 July 2027 | | | | | | |
| Sunday 4 July 2027 | | | Laois pony club qualifier | | | |
| Saturday 10 July 2027 | MGAI Pairs Championships (Ballypatrick) | | | | | |
| Sunday 11 July 2027 | MGAI Pairs Championships (Ballypatrick) | | | | | |
| Saturday 17 July 2027 | | | | | | |
| Sunday 18 July 2027 | | | | | | |
| Monday 19 July 2027 | | | | Royal Welsh |
| Tuesday 20 July 2027 | | | | Royal Welsh |
| Wednesday 21 July 2027 | | | | Royal Welsh |
| Thursday 22 July 2027 | | | | Royal Welsh |
| Saturday 24 July 2027 | | | | | | |
| Sunday 25 July 2027 | | | | | | |
| Monday 26 July 2027 | MGAI competition – tbc | World Pairs Stadl Paura Austria | | John Scott | | |
| Tuesday 27 Jul 2027 | MGAI competition – tbc | World Pairs Stadl Paura Austria | | John Scott | | |
| Wednesday 28 Jul 2027 | | World Pairs Stadl Paura Austria | | | | |
| Thursday 29 Jul 2027 | | World Pairs Stadl Paura Austria | | | | |
| Friday 30 Jul 2027 | | World Pairs Stadl Paura Austria | | | | |
| Saturday 31 Jul 2027 | | World Pairs Stadl Paura Austria | | | | |
| Sunday 1 Aug 2027 | | World Pairs Stadl Paura Austria | | | | |
| Monday 2 Aug 2027 | | ETC & I – Flyinge Sweden | Tinahely RDS Practise | | | |
| Tuesday 3 Aug 2027 | | ETC & I – Flyinge Sweden | RDS | | | |
| Wednesday 4 Aug 2027 | | ETC & I – Flyinge Sweden | RDS | | | |
| Thursday 5 Aug 2027 | | ETC & I – Flyinge Sweden | RDS | | | |
| Friday 6 Aug 2027 | | ETC & I – Flyinge Sweden | RDS | | | |
| Saturday 7 Aug 2027 | | ETC & I – Flyinge Sweden | RDS (PC games finals) | | | |
| Sunday 8 Aug 2027 | | ETC & I – Flyinge Sweden | RDS (PC games finals) | | | |
| Saturday 14 Aug 2027 | | | | | | |
| Sunday 15 Aug 2027 | | | | | | |
| Monday 16 Aug 2027 | | | | | | |
| Tuesday 17 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Wednesday 18 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Thursday 19 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Friday 20 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Saturday 21 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Sunday 22 Aug 2027 | | World Individuals Builth Wells Wales | | | | |
| Saturday 28 Aug 2027 | | | | Intercounties | | |
| Sunday 29 Aug 2027 | | | | Intercounties | | |
| Saturday 4 Sept 2027 | MGAI Teams Championshiops end of Season – Donard – TBC | | | | | |
| Sunday 5 Sept 2027 | MGAI Teams Championships end of Season – Donard – TBC | | | | | |
| Saturday 11 Sep 2027 | | | | British Pairs | | |
| Sunday 12 Sept 2027 | | | | British Pairs | | |
| Saturday 18 Sept 2027 | Irish Autumn Pairs (or teams for prep for France?) | | | | | |
| Sunday 19 Sept 2027 | Irish Autumn Pairs (or teams for prep for France?) | | | | | |
| Saturday 26th Sept | | | | | | |
| Sunday 27th Sept 2027 | | World Teams La Bonde France | | | | |
| Monday 28th Sept 2027 | | World Teams La Bonde France | | | | |
| Tuesday 29th Sept 2027 | | World Teams La Bonde France | | | | |
