These documents are used in prediction contests related to professional American football games played during the third week of the regular season. Participants in these contests make selections for the winners of each game, and their accuracy determines their placement in the standings. The structures often vary from simple lists to elaborate grids with point values associated with each correct pick.
Engaging in these prediction exercises offers a supplemental layer of interest to the viewing experience. Historically, they have facilitated friendly competition among colleagues, family members, and sports enthusiasts. The accessibility and simplicity of format contribute to widespread appeal.