1962-69
  |  1970-79  | 1980-89  | 1990-99  | 2000-09  |  2010-present

 

August 8, 1970
  New Orleans Saints 0 0 14 0 14
  Minnesota Vikings 0 10 0 3 13

July 31, 1971
  Houston Oilers (AFC) 0 0 6 0 6
  Los Angeles Rams (NFC) 0 7 7 3 17

July 29, 1972
  Kansas City Chiefs (AFC) 3 3 7 10 23
  New York Giants (NFC) 0 10 0 7 17

July 28, 1973
  San Francisco 49ers (NFC) 3 14 0 3 20
  New England Patriots (AFC) 0 0 0 7 7

July 27, 1974
  Buffalo Bills (AFC) 0 10 3 0 13
  St. Louis Cardinals (NFC) 7 7 0 7 21

August 2, 1975
  Washington Redskins (NFC) 7 3 7 0 17
  Cincinnati Bengals (AFC) 7 0 2 0 9

July 24, 1976
  Denver Broncos (AFC) 7 3 0 0 10
  Detroit Lions (NFC) 0 0 0 7 7

July 30, 1977
  Chicago Bears (NFC) 0 0 13 7 20
  New York Jets (AFC) 0 6 0 0 6

July 29, 1978
  Miami Dolphins (AFC) 0 3 0 0 3
  Philadelphia Eagles (NFC) 3 0 7 7 17

July 28, 1979
  Dallas Cowboys (NFC) 0 6 0 7 13
  Oakland Raiders (AFC) 10 10 0 0 20