user: Question: What is Paul Coward 492cc Nourish Weslake's lowest rank?
Columns: ['Rank', 'Rider', 'Sat 21 Aug', 'Mon 23 Aug', 'Tues 24 Aug', 'Wed 25 Aug', 'Thurs 26 Aug', 'Fri 27 Aug', 'Sat 28 Aug']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Oliver Linsdell 500cc Paton', 'Untimed Practice', "22' 33.85 100.327mph", "20' 47.34 108.894mph", '—— No Time', "20' 14.59 111.830mph", '—— No Time', '—— No Time']
SQL:

assistant: SELECT MIN("Rank") FROM "Table" WHERE "Rider" = 'Paul Coward 492cc Nourish Weslake';