Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the number of matches with an average larger than 6.33, with a rank of 1?

### Inputs:
table_name: table, columns: ['Rank', 'Player', 'County', 'Tally', 'Total', 'Matches', 'Average']

### Response:
SELECT SUM Matches FROM table WHERE Average > 6.33 AND Rank = 1