user: Question: How many times was the time 19' 38.87 115.219mph on Fri Aug 27?
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, 'Michael Sweeney 600cc Yamaha', 'Untimed Practice', "26' 57.82 89.957mph", "19' 29.69 116.123mph", "19' 17.77 104.021mph", "19' 00.92 119.051mph", "18' 54.41 119.734mph", '—— No Time']
SQL:

assistant: SELECT COUNT("Mon 23 Aug") FROM "Table" WHERE "Fri 27 Aug" = '19'' 38.87 115.219mph';