Hill running is one of the smaller athletics disciplines, and Central has its share of participants. Entry to hill running events is normally done by individuals rather than as club teams.
Full fixtures information is available from the Scottish Athletics website (http://www.scottishathletics.org.uk/) where the fixture list is searchable by discipline with hill running one of the options. Another website with lots of useful information is Scottish Hill Racing (http://www.scottishhillracing.co.uk/) which has a particularly good results archive.
A number of Central AC members do their hill running under the banner of Ochil Hill Runners (see http://www.ochilhillrunners.org.uk/), so if you don’t spot Central AC in the results, that may be why.