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.
- 25/02/2026 Welsh Secondary Schools & Colleges Cross Country Championships @ Brecon
- 28/02/2026 John Collins Cross Country League U11 to Masters 5 of 5 @ Parc Bryn Bach, Tredegar
- 01/03/2026 Newport Half Marathon
- 07/03/2026 Rhayader Round the Lakes 10km & 30km
- 07/03/2026 UK Athletics Cross Challenge Round 4 of 4 @ Wollaton Park, Nottingham
- 08/03/2026 Llanelli 10km, Half Marathon & Full Marathon
- 08/03/2026 Cardiff 10 & 20 Mile Road Races
- 14/03/2026 Nant Yr Arian Silver Trail Races 10km & Half Marathon
- 15/03/2026 West Glamorgan Cross Country League Round 5 of 5 @ Tairgwaith
- 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
- 22/03/2026 Merthyr Half Marathon SOLD OUT
- 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
- 05/04/2026 Teifi 10 Mile Road Race @ Lampeter
- 12/04/2026 Kymin 7 Mile Multi Terrain Race @ Monmouth
- 12/04/2026 Penallta Pony Run 5 Mile Multi Terrain @ Hengoed
- 19/04/2026 Newport 10km Half Marathon & Marathon
- 19/04/2026 Trawsfynydd Multi Terrain 8 Miler