In the twenty - seven year period from 1970 until 1996 the awesome Roosters claimed 14 premierships ( total of 15 Premierships including 1963 ) .
Were runners - up another 6 times .
In the twenty - seven year period from 1970 until 1996 the awesome Roosters claimed 14 premierships ( total of 15 Premierships including 1963 ) and were runners - up another 6 times .