According to StudentSports.com, the official website for the Nike Football Combines, anyone from seventh grade through senior year of high school can attend the Nike Football Combines. Seventh and eighth graders compete separately from high school students.
Top performers become eligible to compete in the later Nike Football: The Opening Regionals and possibly The Opening Finals, which both take place the following summer at the Nike World Headquarters. Registration is free for all competitors, but there is a deadline for online registration. The event does not accept walk-ups. The 2015 competition spans across six different locations throughout the United States.