The Dashboard is your personal summary of activity.
This shows you a list of your performances over time. You can click on the buttons at the bottom of the graph to show Distance, Intensity, Top Speed or Zone 6. Click on any of the bars to view a detailed breakdown.
This shows your personal bests for Total Distance, Intensity, Top Speed and Zone 6. These values are updated every time you upload a performance that has a better score.
You can switch between teams you play for on the dashboard with the team selector (underneath your profile picture). Selecting a team will update your performances to show your history for that team (or your personal performances).