Log in to your raceID profile. NOTE! It is important that you log in with the same e-mail/profile as you used when you registered to the race.
Go to "My results" and scroll down to "Virtual Races".
Click "Log Distance / Log Altitude" for the race you want to log results for.
Add your results, the requested details and activity link from your watch/app (preferred apps Strava/Runkeeper/Endomondo and preferred watches Garmin/Suunto/Polar/Apple).
To edit and add more/other result click the expand button and edit/add and save.
Done - your result is now visible in the public result list.