Within your admin area, you're able to add the locations of each of you're runs. These locations can then be assigned to a run, during the run creation process.
Start by selecting the 'Locations' module, along the left hand side of your admin area.
Next select '+Add new location'.
Start to type in your locations address and click on it once it appears in the drop down list.
You can drag the pin on the map to refine your meetup location and add a meetup description, which will appear on the website.
After saving your new location will appear in your locations list and will be available for selection when creating your runs.