user: Question: Which Competition was 1st Position with 57.03 in Notes?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Event', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1981.0, 'European Junior Championships', 'Utrecht, Netherlands', '3rd', '400m h', '57.45']
SQL:

assistant: SELECT "Competition" FROM "Table" WHERE "Position" = '1st' AND "Notes" = '57.03';