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

### Instruction:
What playoff result happened during the season in which they finished 1st, southern?

### Inputs:
table_name: table, columns: ['Year', 'Division', 'League', 'Reg. Season', 'Playoffs', 'Open Cup']

### Response:
SELECT Playoffs FROM table WHERE Reg. Season = 1st, Southern