In case of any competition changes please keep checking back and the links to organisers websites. Only UK Athletics / Welsh Athletics licenced events are listed.
- 20/03/2025 World Masters Indoor Athletics Championships, Gainesville, Florida, USA Until 30th March
- 21/03/2025 World Indoor Athletics Championships @ Nanjing, China Until 25th March
- 22/03/2025 U15 & U17 Wales V England V Scotland V Ireland Schools Cross Country International @ Callandar Park, Falkirk, Scotland
- 22/03/2025 Nant Yr Arian Silver Trail Half Marathon & 10km
- 23/03/2025 West Glamorgan Cross Country League 5 of 5 (Seniors) @ Tairgwaith
- 30/03/2025 San Domenico 20 Mile & 10 Mile Races @ Merthyr Tydfil
- 05/04/2025 Neal Merry Swansea Harriers Open Meeting @ Swansea
- 06/04/2025 Gorseinon 10km
- 12/04/2025 European 10km, Half & Full Marathon Road Running Championships @ Leuven & Brussels, Belguim Until 13th April
- 12/04/2025 UK Sportshall U13 & U15 Finals @ Fenton Manor, Stoke
- 12/04/2025 English National 12 and 6 Stage Road Relays @ Sutton Park
- 13/04/2025 Newport Half & Full Marathons & 10km
- 13/04/2025 Trawsfynydd Multi Terrain 8 Miler
- 27/04/2025 London Marathon
- 27/04/2025 U17 & U20 Youth Development League Round 1 of 3 @ TBC
- 01/05/2025 Afan Nedd Tawe Schools & Colleges U15 U17 & U20 Championships @ Swansea
- 03/05/2025 U13 & U15 Youth Development League Round 1 of 3 @ TBC
- 04/05/2025 Welsh 5K Road Racing Championships @ Cardiff
- 10/05/2025 West Wales U13 to Seniors Championships @ Swansea
- 11/05/2025 Caerphilly 10km incorporating the Welsh Inter Regional Championships