I have a collie-x. He was able to run up to 27-30 miles with me, but he had (and still has) behavioural issues because he is a rescue.
If you had a collie from a puppy, it would of course be different, but they are very bright, sensitive dogs (needing lots of 1:1 stimulation) and are generally more suited to isolated farm living than town. However, collie-x breeds can be far more robust/adaptable and the right cross could be perfect for family life and running.
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*Frodo* 
