The dashboard should update based on what is on the Arccos application. However if a manual update is needed, please follow the steps below-

1) Go to the Rounds list in the app
2) Long press for 5 or more seconds on 'Stats' for the round in need of update
3) Tap 'Send my Round' to resend the round to the server

These steps should resend the round to the server, where it should generate stats, and be visible on the dashboard.