the handy thing with Gav maintaining the DH one, and me doing the XC one, is that you can combine the two / view them together to see where DH and XC events occur close to each other, or at the same time.
These calendars were created with the latest info from Cycling Ireland, if there are any changes to the events, myself or Gav will update the respective calendars so ye will be up to date
This link takes you to the Cycling Ulster website and there's a spreadsheet covering both XC and DH events in Ireland so everything is on one page which should help.