CREATE TABLE table_28962227_1 (runners_up VARCHAR, winner VARCHAR)
SELECT COUNT(runners_up) FROM table_28962227_1 WHERE winner = "Joanne Wheatley"
ตอนที่ Joanne Wheatley ชนะมีรองชนะเลิศกี่คน
How many runners-up were there when Joanne Wheatley won?