user: Question: What is Event, when Record is "3-0"?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Event', 'Round', 'Location']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Loss', '11-2', 'Antonio Silva', 'Submission (rear naked choke)', 'EliteXC: Renegade', 1.0, 'Texas , United States']
SQL:

assistant: SELECT "Event" FROM "Table" WHERE "Record" = '3-0';