user: Question: Who lost the game with a record of 20-13?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['May 1', '@ Indians', '4 - 3', 'Candiotti (3-1)', '5,111', '13-9']
SQL:

assistant: SELECT "Loss" FROM "Table" WHERE "Record" = '20-13';