domain is r u n n e r s t r a i n i n g g u i d e . c o m site has content on it if you think that is of any worth I wouldn't turn down an appraisal for that either, but really just the domain is necessary.
For just the domain alone, you'd be looking at low $xx. With the site as it is now, you'd probably get a high $xx, knocking into the low $xxx