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.
- 29/01/2021 Welsh Athletics 10km Virtual until 1st February
- 12/02/2021 Welsh Athletics Road Relays Virtual until 15th February
- 19/02/2021 Welsh Athletics 1 Mile Virtual until 21st February
- 20/02/2021 British Athletics Senior Indoor Championships @ Glasgow Until 21st February
- 04/03/2021 European Indoor Athletics Championships @ Torun, Poland until 7th March
- 05/03/2021 Welsh Athletics 2 Miles Virtual until 8th March
- 12/03/2021 Welsh Athletics 3 Miles Virtual until 15th March
- 13/03/2021 European Throwing Cup @ Leiria, Portugal Until 14th March
- 14/03/2021 San Domenico 20 & 10 miles
- 19/03/2021 Welsh Athletics Junior 5km & Senior 10km Virtual until 22nd March
- 21/03/2021 Merthyr Half Marathon
- 11/04/2021 Kymin Dash 7 miles
- 11/04/2021 Llanelli Half & Full Marathons
- 02/05/2021 Cardiff 5km Incorporating the Welsh Championships
- 09/05/2021 Epic Trail 10km @ Swansea
- 16/05/2021 Caerphilly 10km
- 23/05/2021 Cardiff Bay 10km Incorporating The Welsh Championships
- 05/06/2021 European 10,000m Cup @ Highgate, London
- 13/06/2021 Swansea Half Marathon
- 26/06/2021 International Combined Events Meeting @ Hexham Until 27th June