user: ### NOW ANSWER:
Question: What is the largest win percentage when John Gartin is coach, the record is 11-0, and the year is 2009?
Columns: ['Year', 'Coach', 'Crew', 'Record', 'Win %']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['2003', 'John Gartin', 'Varsity 8+', '7-3', 0.7]
SQL:

assistant: SELECT MAX("Win %") FROM "Table" WHERE "Coach" = 'John Gartin' AND "Record" = '11-0' AND "Year" = '2009';