RunNation hosts races of all distances in many locations both nearby and further afield; there are too many to list here but full information - and entry - is available on their website : https://runnation.co.uk/races
Borders XC Series
2 February : Sixth Leg @ Minto, Hawick (Teviotdale Harriers)
23 February : Seventh Leg @ Dunbar (Dunbar Running Club)
8 March : Presentation Round and Eighth Leg @ Chirnside (Chirnside Chasers)