Its simple! Join race (MUNSTER v LEINSTER)) at
http://www.munstervleinster.com, click on
"Join Team MUNSTER" or click
"Join Team LEINSTER" to enter..
Then download the RaceRunner App.
Using the app, run any distance by the end of the calendar month (December 2018). You don't have to upload your evidence like other virtual races as everything is tracked on the app.
Don't want to run with your phone? Use your Smartwatch (Garmin, Tom Tom and Polar).