The fixture list is always provisional. In case of any competition date or venue changes please keep checking back and the links to organisers websites. Only UK Athletics / Welsh Athletics licenced events are listed.
- 14/03/2026 Nant Yr Arian Silver Trail Races 10km & Half Marathon
- 14/03/2026 Throws & Endurance Open @ Birmingham
- 15/03/2026 West Glamorgan Cross Country League Round 5 of 5 @ Tairgwaith
- 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
- 21/03/2026 Spring Equinox 6 Mile Trail Run @ Wentwood Forest, Nr Newport
- 21/03/2026 British Masters Cross Country Championships @ Faenol Estate, North Wales
- 21/03/2026 Primary School Cross Country Races Prior to SIAB Schools International @ Faenol Estate
- 22/03/2026 Merthyr Half Marathon SOLD OUT
- 22/03/2026 Welsh U14 & U16 SportsHall Athletics Final @ Cwmbran Leisure Centre
- 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
- 29/03/2026 San Domenico 10 & 20 Mile Road Races @ Merthyr Tydfil
- 04/04/2026 Yeovil Open 1 of 2
- 04/04/2026 Basingstoke Open
- 05/04/2026 Teifi 10 Mile Road Race @ Lampeter
- 06/04/2026 Yeovil Open 2 of 2
- 11/04/2026 Run With The Wind Sprints Open Meeting U16 to Seniors 1 of 4 @ Cardiff
- 11/04/2026 UK U14 & U16 SportsHall Athletics Final @ Fenton Manor Leisure Centre, Stoke
- 12/04/2026 Kymin 7 Mile Multi Terrain Race @ Monmouth