| Kings Forest TREC – Summer 2021 Competition | 21/05/2021 | 01/04/2021 | 10/05/2021 | East Anglia TREC Group | Summer Series 2021 | 1, 2, 2a, 3 | Provisional | east-anglia | ss21 summer-series | provisional |
| Gower Spring TREC Summer 2021 Competition | 01/04/2021 | 01/03/2021 | 22/03/2021 | Red Kite TREC Group | Summer Series 2021 | 1, 2, 2a | Provisional | red-kite | ss21 summer-series | provisional |
| Wernham Farm – Summer 2021 Competition | 28/05/2021 | 01/04/2021 | 16/05/2021 | Wessex TREC Club | Summer Series 2021 | 1, 2, 2a, 3 | Provisional | wessex | ss21 summer-series | provisional |
| Oxlease Farm – Summer 2021 Competition | 26/06/2021 | 15/05/2021 | 01/06/2021 | Wessex TREC Club | Summer Series 2021 | 1 | Provisional | wessex | ss21 summer-series | provisional |
| Harwood Dale TREC, North Yorkshire, Summer 2021 Competition | 04/06/2021 | 01/05/2021 | 21/05/2021 | White Horse TREC Group | Summer Series 2021 | 1, 2, 2a, 3, 4 | Provisional | whtg | ss21 summer-series | provisional |
| Walford College Winter Competition | 24/10/2020 | 24/09/2020 | 16/10/2020 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Entries Open | trac | ws20-21 winter-series | entries-open |
| Walford College Winter Competition | 28/11/2020 | 28/10/2020 | 21/11/2020 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Awaiting Schedule | trac | ws20-21 winter-series | awaiting-schedule |
| Walford College Winter Competition | 16/01/2021 | 16/12/2020 | 09/01/2021 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Awaiting Schedule | trac | ws20-21 winter-series | awaiting-schedule |
| Walford College Winter Competition | 27/02/2021 | 27/01/2021 | 13/02/2021 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Awaiting Schedule | trac | ws20-21 winter-series | awaiting-schedule |
| Gracelands Winter Competition | 28/03/2021 | 28/02/2021 | 20/03/2021 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Awaiting Schedule | trac | ws20-21 winter-series | awaiting-schedule |
| Cavalier Centre Winter Competition | 03/04/2021 | 03/03/2021 | 27/03/2021 | TRAC (TREC Riders Association Cymru) | Winter Series 2020-21 | | Awaiting Schedule | trac | ws20-21 winter-series | awaiting-schedule |
| EAT Beechwood Winter Competition | 21/02/2021 | 21/01/2021 | 12/02/2021 | East Anglia TREC Group | Winter Series 2020-21 | | Awaiting Schedule | east-anglia | ws20-21 winter-series | awaiting-schedule |
| EATG Beechwood Winter Competition | 15/11/2020 | 15/10/2020 | 06/11/2020 | East Anglia TREC Group | Winter Series 2020-21 | | Entries Open | east-anglia | ws20-21 winter-series | entries-open |
| Barnetby TREC -Summer 2021 Competition | 12/06/2021 | 05/04/2021 | 28/05/2021 | TREC Lincolnshire | Summer Series 2021 | 1, 2, 2a | Provisional | lincs | ss21 summer-series | provisional |
| Oasby TREC – Summer 2021 Competition | 17/07/2021 | 05/04/2021 | 02/07/2021 | TREC Lincolnshire | Summer Series 2021 | 1, 2, 2a, 3 | Provisional | lincs | ss21 summer-series | provisional |
| Quantock TREC | 03/07/2021 | 01/05/2021 | 04/06/2021 | TREC Southwest | Summer Series 2021 | 2, 2a, 3 | Provisional | tsw | ss21 summer-series | provisional |
| IOM Winter Competition | 01/11/2020 | 19/08/2020 | 23/10/2020 | TREC Isle of Man | Winter Series 2020-21 | | Entries Open | iom | ws20-21 winter-series | entries-open |
| IOM Winter Competition | 03/01/2021 | 19/08/2020 | 25/12/2020 | TREC Isle of Man | Winter Series 2020-21 | | Entries Open | iom | ws20-21 winter-series | entries-open |
| IOM Winter Competition | 14/02/2021 | 19/08/2020 | 05/02/2021 | TREC Isle of Man | Winter Series 2020-21 | | Entries Open | iom | ws20-21 winter-series | entries-open |
| Tumpy Green Winter Series Competition | 20/12/2020 | 20/10/2020 | 11/12/2020 | Wessex TREC Club | Winter Series 2020-21 | | Awaiting Schedule | wessex | ws20-21 winter-series | awaiting-schedule |
| Tumpy Green Winter Series Competition | 07/02/2021 | 07/12/2020 | 29/01/2021 | Wessex TREC Club | Winter Series 2020-21 | | Awaiting Schedule | wessex | ws20-21 winter-series | awaiting-schedule |
| Willow Farm Winter Competition | 21/11/2020 | 21/09/2020 | 13/11/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Willow Farm Winter Competition | 05/12/2020 | 05/10/2020 | 27/11/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Willow Farm Winter Competition | 02/01/2021 | 02/11/2020 | 21/12/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Willow Farm Winter Competition | 06/02/2021 | 06/12/2020 | 29/01/2021 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Willow Farm Winter Competition | 06/03/2021 | 06/02/2021 | 26/02/2021 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Conquest Winter Competition | 29/11/2020 | 29/09/2020 | 20/11/2020 | TREC Southwest | Winter Series 2020-21 | | Entries Open | tsw | ws20-21 winter-series | entries-open |
| Sands Farm EC Winter Competition | 15/11/2020 | 15/09/2020 | 06/11/2020 | South East TREC Group | Winter Series 2020-21 | | Entries Open | setg | ws20-21 winter-series | entries-open |
| Sands Farm EC Winter Competition | 13/12/2020 | 13/10/2020 | 04/12/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Sands Farm EC Winter Competition | 10/01/2021 | 10/11/2020 | 01/01/2021 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Sands Farm EC Winter Competition | 21/03/2021 | 21/01/2021 | 12/03/2021 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| Scottish Championships – Fife – Summer 2021 Competition | 25/06/2021 | 30/04/2021 | 11/06/2021 | TREC Scotland | Summer Series 2021 | 1, 2, 2a, 3, 4 | Provisional | trec-scotland | ss21 summer-series | provisional |
| Central Moulton 2 – Winter Competitions | 15/11/2020 | 13/09/2020 | 04/11/2020 | Central TREC Group | Winter Series 2020-21 | | Entries Open | central | ws20-21 winter-series | entries-open |
| Central Moulton 3 – Winter Competitions | 10/01/2021 | 13/09/2020 | 31/12/2020 | Central TREC Group | | | Entries Open | central | | entries-open |
| Central Moulton 4 – Winter Competitions | 28/02/2021 | 13/09/2020 | 18/02/2021 | Central TREC Group | Winter Series 2020-21 | | Entries Open | central | ws20-21 winter-series | entries-open |
| Welsh Championships – Bryn Sion – Summer 2021 Competiton | 15/05/2021 | 01/03/2021 | 24/04/2021 | TRAC (TREC Riders Association Cymru) | Summer Series 2021 | 2, 2a, 3, 4 | Provisional | trac | ss21 summer-series | provisional |
| EAT Roding Hall POR | 02/05/2021 | 01/03/2021 | 23/04/2021 | East Anglia TREC Group | POR Only Competition | 1, 2, 2a | Provisional | east-anglia | por-only summer-series | provisional |
| TRAC Nesscliffe TREC Summer 2021 Competition | 18/09/2021 | 01/07/2021 | 28/08/2021 | TRAC (TREC Riders Association Cymru) | Summer Series 2021 | 1 | Provisional | trac | ss21 summer-series | provisional |
| Tugford TREC, Summer 2021 Competition | 11/09/2021 | 01/07/2021 | 28/08/2021 | TRAC (TREC Riders Association Cymru) | Summer Series 2021 | 1, 2, 2a, 3 | Provisional | trac | ss21 summer-series | provisional |
| EATG Finchingfield Winter Competition | 28/03/2021 | 04/01/2021 | 19/03/2021 | East Anglia TREC Group | Winter Series 2020-21 | | Awaiting Schedule | east-anglia | ws20-21 winter-series | awaiting-schedule |
| NEST Ladyleys Winter Competition | 29/11/2020 | 24/09/2020 | 20/11/2020 | North East Scotland TREC | Winter Series 2020-21 | | Entries Open | nest | ws20-21 winter-series | entries-open |
| NEST Ladyleys Winter Competition | 20/12/2020 | 24/09/2020 | 11/12/2020 | North East Scotland TREC | Winter Series 2020-21 | | Entries Open | nest | ws20-21 winter-series | entries-open |
| SET The Croft Winter Competition | 29/11/2020 | 24/09/2020 | 20/11/2020 | South East TREC Group | Winter Series 2020-21 | | Entries Open | setg | ws20-21 winter-series | entries-open |
| SET Bodiam Winter Competition | 20/12/2020 | 24/09/2020 | 11/12/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| SET Bodiam Winter Competition | 08/11/2020 | 24/09/2020 | 30/10/2020 | South East TREC Group | Winter Series 2020-21 | | Awaiting Schedule | setg | ws20-21 winter-series | awaiting-schedule |
| SOS TREC Hyndshawland Winter Competition 2 | 21/11/2020 | 29/09/2020 | 13/11/2020 | South of Scotland TREC | Winter Series 2020-21 | | Awaiting Schedule, Entries Open | sos | ws20-21 winter-series | awaiting-schedule entries-open |
| SOS TREC Hyndshawland Winter Competition 3 | 12/12/2020 | 12/11/2020 | 10/12/2020 | South of Scotland TREC | Winter Series 2020-21 | | Awaiting Schedule | sos | ws20-21 winter-series | awaiting-schedule |
| SOS TREC Hyndshawland Winter Competition 4 | 23/01/2021 | 14/12/2020 | 21/01/2021 | South of Scotland TREC | Winter Series 2020-21 | | Awaiting Schedule, Entries Open | sos | ws20-21 winter-series | awaiting-schedule entries-open |
| SOS TREC Hyndshawland Winter Competition 5 | 20/02/2021 | 25/01/2021 | 18/02/2021 | | Winter Series 2020-21 | | Awaiting Schedule, Entries Open | | ws20-21 winter-series | awaiting-schedule entries-open |
| BTG Winter Competition 3 Wigan | 01/11/2020 | 01/10/2020 | 29/10/2020 | Bowland TREC Group | Winter Series 2020-21 | | Awaiting Schedule | bowland | ws20-21 winter-series | awaiting-schedule |
| Wessex Breach Lane Winter Series | 08/11/2020 | 02/10/2020 | 05/11/2020 | Wessex TREC Club | Winter Series 2020-21 | | Awaiting Schedule, Entries Open | wessex | ws20-21 winter-series | awaiting-schedule entries-open |
| Wessex Lower Haddon Winter Series | 17/01/2021 | 01/12/2020 | 14/01/2021 | Wessex TREC Club | Winter Series 2020-21 | | Awaiting Schedule, Entries Open | wessex | ws20-21 winter-series | awaiting-schedule entries-open |
| TSW TREC Training Conquest EC. Introduction to TREC Obstacles (PTV) | 08/11/2020 | 02/10/2020 | 05/11/2020 | TREC Southwest | PTV & MA Training | | Entries Open | tsw | ptv-ma-training training | entries-open |
| CTG – Long Drove – TREC Training | 25/10/2020 | 08/10/2020 | 20/10/2020 | Central TREC Group | PTV & MA Training | | Entries Open | central | ptv-ma-training training | entries-open |
| TREC Lincolnshire Training LRAC Kenwick | 21/11/2020 | 25/10/2020 | 15/11/2020 | TREC Lincolnshire | Winter Series 2020-21 | | Entries Open | lincs | ws20-21 winter-series | entries-open |
| TREC Lincolnshire Training LRAC Kenwick | 24/10/2020 | 06/10/2020 | 18/10/2020 | TREC Lincolnshire | Winter Series 2020-21 | | Entries Open | lincs | ws20-21 winter-series | entries-open |
| Wessex -Unmounted Map reading with compass – Stroud | 01/11/2020 | 08/10/2020 | 01/11/2020 | Wessex TREC Club | POR Training | | Entries Open | wessex | por-training training | entries-open |
| WHTG Moorhouse Winter Series | 28/11/2020 | 12/10/2020 | 19/11/2020 | White Horse TREC Group | Winter Series 2020-21 | | Awaiting Schedule | whtg | ws20-21 winter-series | awaiting-schedule |
| BTG Barton Equestrian Centre TREC Training | 06/12/2020 | 01/11/2020 | 03/12/2020 | Bowland TREC Group | PTV & MA Training | | Awaiting Schedule, Entries Open | bowland | ptv-ma-training training | awaiting-schedule entries-open |
| TREC Scotland Winter Series – Non TREC GB League | 25/10/2020 | 08/10/2020 | 21/10/2020 | TREC Scotland | PTV & MA Only Competition | | Entries Open | trec-scotland | ptv-ma summer-series | entries-open |
