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.
- 08/03/2025 British Cross Challenge 5 & UK Inter Counties Cross Country Championships @ Nottingham
- 09/03/2025 British Masters Half Marathon Championships @ Paddock Wood
- 16/03/2025 Llanelli Half & Full Marathons
- 16/03/2025 Merthyr Half Marathon
- 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
- 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 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
- 04/05/2025 Welsh 5K Road Racing Championships @ Cardiff
- 11/05/2025 Caerphilly 10km incorporating the Welsh Inter Regional Championships
- 07/06/2025 Welsh Castles 20 Stage Relay Caernarfon to Cardiff Until 8th June
- 08/06/2025 Swansea Half Marathon
- 06/07/2025 Porthcawl 10km
- 17/08/2025 Beast Of Bryn 6.5 & 10.5 Mile Multi Terrain Races