<page_title> List of American Association (20th century) champions </page_title> <section_title> League champions </section_title> <table> <cell> 1957 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–2 <col_header> Score </col_header> </cell> <cell> 1971 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–3 <col_header> Score </col_header> </cell> <cell> 1976 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–2 <col_header> Score </col_header> </cell> <cell> 1977 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–2 <col_header> Score </col_header> </cell> <cell> 1981 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–0 <col_header> Score </col_header> </cell> <cell> 1983 <col_header> Year </col_header> </cell> <cell> Denver Bears <col_header> Champion </col_header> </cell> <cell> 4–0 <col_header> Score </col_header> </cell> <cell> 1991 <col_header> Year </col_header> </cell> <cell> Denver Zephyrs <col_header> Champion </col_header> </cell> <cell> 3–2 <col_header> Score </col_header> </cell> </table>
The Zephyrs won the American Association championship on seven occasions: 1957, 1971, 1976, 1977, 1981, 1983, and 1991.