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.
- 20/03/2026 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
- 27/03/2026 European Masters Indoor Championships @ Torun, Poland Until 2nd April
- 28/03/2026 Welsh Seniors 4 Stage & Masters 3 Stage Road Relay Championships @ Parc Bryn Bach incorporating the trials for the London Mini Marathon U14, U16 & U18
- 12/04/2026 Kymin 7 Mile Multi Terrain Race @ Monmouth
- 18/04/2026 British Universities 10,000m Championships @ Loughborough
- 19/04/2026 Newport 10km Half Marathon & Marathon
- 19/04/2026 Trawsfynydd Multi Terrain 8 Miler
- 19/04/2026 U18 & U20 Youth Development League Round 1 of 3 @ TBC
- 26/04/2026 London Marathon
- 03/05/2026 U14 & U16 Youth Development League Round 1 of 3 @ TBC
- 06/05/2026 Afan Nedd Tawe Secondary Schools & Colleges U16 U18 & U20 Championships @ TBC
- 10/05/2026 Caerphilly 10km
- 17/05/2026 Barry Island 10km
- 23/05/2026 Senior Men & Women Premier Division National Athletics League Round 1 of 3 @ Derby
- 24/05/2026 U18 & U20 Youth Development League Round 2 of 3 @ TBC
- 31/05/2026 U14 & U16 Youth Development League Round 2 of 3 @ TBC
- 07/06/2026 Swansea Half Marathon
- 22/06/2026 Afan Nedd Tawe U14 & U16 Secondary Schools Girls Cup Match @ TBC