Submissions to solve individual dataset scenarios are made from the Sandbox page. Sandbox submissions are currently OPEN. Any member of a team may make a Sandbox submission.
Submissions for an Event (one per team) are made from this Challenge page.
Event 3 submissions are now CLOSED. Only approved teams (see table below) may make an Event submission. Approval status is on your Team page. If you do not see the blue submit button on this page you are not authorized.
See How to Make a Submission for detailed information. Only approved teams (see list below) may make an Event submission. Approval status is on your Team page.