user: Question: In what Week was Serena Williams 6–1, 6–7(7), 6–3 the Winner?
Columns: ['Tournament', 'Surface', 'Week', 'Winners', 'Finalists', 'Semifinalists']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Tokyo', 'Carpet (i)', 'January 29', 'Lindsay Davenport 6–7(4), 6–4, 6–2', 'Martina Hingis', 'Magdalena Maleeva Anna Kournikova']
SQL:

assistant: SELECT "Week" FROM "Table" WHERE "Winners" = 'Serena Williams 6–1, 6–7(7), 6–3';