Hey,
If you log in to Codalab, you actually should already be able to download the submissions from a link above the leaderboard. Specifically, the button appears next to the "Download CSV" button, but only if you are logged in to Codalab.
That said, the download also includes a lot of useless metadata files, so we are currently cleaning everything up and will release all the system output in a cleaner file soon. We'll let you know when it's ready!
Chris