Can anyone explain to me how it all works?
I've seen for instance the 'mountain running international cup':
http://www.mnric.com/news.php?idioma=eng
of which the Nuria Classic was one component this year.
Then there's the International Sky Running Federation, and their series / championship:
http://www.skyrunning.com/index.php?...=160&Itemid=99
And then there's this UKA sponsored comp:
http://www.uka.org.uk/competitions/m...ing-challenge/
Are some of the top runners contracted to one of these bodies or the other, so that they only run in that body's races (a bit like the darts) or is everyone free to compete in all three of these?
I noticed for instance that the top names at the Nuria Classic this year were very different from the top names at Sierre-Zinal. OK different races, different countries, but as they are two of the biggest mountain races in Europe, I'd've thought the same bunch of top runners might be contesting both.