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 :

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)