The Event Performance page gives you a focused view of one event rather than your whole account.
Finding it
Go to the My Events section of your account.
Hover over the event you want.
Select Event Performance, the first option in the Action dropdown.
How it works
The page behaves like the Overall Performance page. You get the same graph defaulting to net revenue over the last 30 days, the same date range and comparison controls in the top right, and the same five metric tabs: Net Revenue, Entries, Transactions, Page Views and Facebook Engagements. Those metrics are defined in the overall performance article and mean the same thing here.
What is different
The All Time data on this page is broken down into Sub Events, Gross Revenue, Net Revenue, Outgoings and Performance, rather than the seven categories on the account-wide page. Sub Events is the addition, letting you see how each distance or race within the event performed on its own.