The activity in question is a common format in American football, specifically relating to the National Football League (NFL). Participants attempt to predict the winners of all or a select number of games scheduled during a particular week of the regular season; in this case, week 9. Individuals typically make these selections before the games commence, and scoring is based on the accuracy of their predictions.
Participation in such prediction contests fosters increased engagement with the NFL. It adds an element of competition and social interaction, as individuals often participate in leagues with friends, family, or colleagues. Historically, this form of predicting game outcomes has existed informally for decades, but the advent of online platforms and sports websites has greatly expanded its accessibility and popularity, offering features like automated scoring and standings.