marathon dates

hi there

my name is sebastian and im from poland.
i would like to visit your country and do a marathon race.
anyone can tell me where i can find marathon 2009 dates?
which marathon is the most famoust, bigger with cool track?

thanks for any help
sebastian

 

Here is the pre-calendar for Madrid http://www.fmciclismo.com/precalendario09.pdf, dates might change.

I'm not sure if the races are the most famous, but the competition is of a high standard.

Possibly it is worth a look at the pages of Spanish Cycling Federation, sometimes difficult to navegate... OK, in agrupacion enter BTT-XC.