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

### Instruction:
What are the average start(s) when he had $1,663,868?

### Inputs:
table_name: table, columns: ['Year', 'Starts', 'Wins', 'Top 10', 'Avg. Start', 'Avg. Finish', 'Winnings', 'Position', 'Team(s)']

### Response:
SELECT Avg. Start FROM table WHERE Winnings = $1,663,868