user: Question: Which Round has an Opponent of Aleksandr Pitchkounov?
Columns: ['Result', 'Opponent', 'Method', 'Event', 'Round', 'Location']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Win', 'Michael Bisping', 'Decision (Unanimous)', 'CWFC: Strike Force 1', 4.0, 'Coventry , West Midlands , England']
SQL:

assistant: SELECT "Round" FROM "Table" WHERE "Opponent" = 'Aleksandr Pitchkounov';