Provisional program for tomorrow's cross country is at 

http://www.craughwellac.com/site/images/2013/xc/2013GalwayXCProgramDay1.pdf  

Note U18s and older all run in same team event but U18s have their own individual category, as do junior, novice, etc.. You can only medal individually in a single category - the one in which you were entered. Note also that there are two individual masters categories - O40 and O50. There is no O35 category.