user: Question: Tell me the lowest date for result of Win and method of Points with notes of Opening Round
Columns: ['Result', 'Opponent', 'Method', 'Event', 'Date', 'Notes']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Win', 'Ricardo Almeida', 'Technical Submission (Injury)', 'ADCC 2001 Absolute Division', 2001.0, '3rd Place Spot-Wins Bronze Medal']
SQL:

assistant: SELECT MIN("Date") FROM "Table" WHERE "Result" = 'Win' AND "Method" = 'Points' AND "Notes" = 'Opening Round';