Due to World War II, the English Cocker Spaniel managed to be the only breed to have won the title between 1938 and 1950, although the competition was only held on four occasions during that period.
由于第二次世界大战，英国可卡犬成为在1938年到1950年间唯一赢得头衔的品种，尽管在此期间只举行了四次该比赛。