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.
- 15/03/2026 West Glamorgan Cross Country League Round 5 of 5 @ Gnoll Country Park
- 20/03/2026 World Indoor Athletics Championships @ Kujawy Pomorze, Poland Until 22nd March
- 21/03/2026 SIAB British Schools U15 & U17 Cross Country International @ Vaynol Park, Pentir, Gwynedd
- 22/03/2026 Merthyr Half Marathon
- 28/03/2026 Welsh Seniors 4 Stage & Masters 3 Stage Road Relay Championships @ Parc Bryn Bach
- 19/04/2026 Newport 10km Half Marathon & Marathon
- 19/04/2026 Trawsfynydd Multi Terrain 8 Miler
- 26/04/2026 London Marathon
- 10/05/2026 Caerphilly 10km
- 17/05/2026 Barry Island 10km
- 07/06/2026 Swansea Half Marathon
- 05/07/2026 Porthcawl 10km
- 12/07/2026 Mic Morris Torfaen 10km
- 18/07/2026 Rabbit Run 12km & 40km Multi Terrain Races @ Merthyr Mawr
- 23/07/2026 Commonwealth Games @ Glasgow Until 2nd August
- 04/08/2026 World U20 Athletics Championships @ Eugene, Oregan, USA Until 9th August
- 10/08/2026 European Athletics Championships @ Birmingham Until 16th August
- 06/09/2026 Cardiff 10km
- 20/09/2026 Swansea Bay 10km 3km & 1km
- 04/10/2026 Cardiff Half Marathon SOLD OUT