user: Question: What is the highest Strike Rate when the average is less than 50.25 with less than 13 matches played?
Columns: ['Player', 'Team', 'Matches', 'Overs', 'Economy Rate', 'Wickets', 'Average', 'Strike Rate', 'Best Bowling']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: ['Muttiah Muralitharan', 'Chennai Super Kings', 13.0, 50.0, 5.22, 14.0, 18.64, 21.4, '3/11']
SQL:

assistant: SELECT MAX("Strike Rate") FROM "Table" WHERE "Matches" < 13.0 AND "Average" < 50.25;