user: Question: What Score in the final has a Surface of Hard, a Championship of Washington, D.C. , U.S., and an Opponent in the final of Ivan Lendl?
Columns: ['Outcome', 'Date', 'Championship', 'Surface', 'Opponent in the final', 'Score in the final']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 1982.0, 'Taipei , Taiwan', 'Carpet', 'Craig Wittus', '6–1, 6–4']
SQL:

assistant: SELECT "Score in the final" FROM "Table" WHERE "Surface" = 'Hard' AND "Championship" = 'Washington, D.C. , U.S.' AND "Opponent in the final" = 'Ivan Lendl';