user: Question: How many rounds was the match against Jason Fairn?
Columns: ['Res.', 'Record', 'Opponent', 'Method', 'Round']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Loss', '5-5', 'Jeff Monson', 'Decision (unanimous)', '3']
SQL:

assistant: SELECT "Round" FROM "Table" WHERE "Opponent" = 'Jason Fairn';