runningspikes.net - 1200+ visits p/m / 12,100 searches uk
Good PR and potential to earn a revenue but who would you sell this to ? maybe get big sports stores to bid on it, value, typically a well ranked and earning site will sell for 12 to 18 months of it's revenue so depends on revenue ? but as a .net then I would try for 12 months revenue as your price.
hotelsnewquay.com - 5,400 searches uk
Can't find this one in the top 30 results so little value, maybe £100 because its .com and could be monetised.
hoteldealsuk.co.uk - 3,600 searches uk
Brandable in my eyes, however it does get an average of 2500 exacts per month so based on that it's another where you might get 12 months revenue if you have proof of earnings.
mojofarah.co.uk - PR 3 / 250 visits p/m
Didn't know what this was

but now I know I can tell you it's worth nothing because of the risk of a DRS case.
Hope you appreciate these appraisals, newbies don't normally get such a thorough apparaisal (if any)
