Sports marketing is:

the specific application of marketing principles and processes to sport products (e.g., teams, leagues, events, etc.) and

the the marketing of non-sports products (e.g., cigarettes, beer, long-distance phone service, etc.) through associations with sports.

The Business Side of Sports
Sports marketing executives are the people who usually handle the business side of sports. Some of them work for a league or sports association. Some others usually work for teams. Some work on behalf of major companies by managing promotional campaigns and sponsorships of sporting events.

In addition, there are some who organize sports-related events on behalf of sports organizations, associations, teams, or companies. There are many tourism offices and convention and visitors bureaus

that hire sports marketing executives specifically to work and help a particular city lure important sports events and teams to its town.

Fashion Marketing:

Fashion Marketing works by using current trends in fashion to analyze, develop, and implement sales strategies. Fashion marketing investigates the relationship between fashion design and marketing including the development, promotion, advertising, and retailing aspects of the billion dollar fashion industry. Successful fashion marketers understand that recognizing consumer trends, strong branding, and a desirable product image are all essential elements to building an effective and meaningful campaign.
References :
BS Degree Mass Communications, Emphasis in advertising/marketing