Big plays are categorized as rushing plays that are over 10 yards and passing plays that are over 25 yards. These are the types of play that can break open a game for a team or put its opponent away for the win.
More about Team Big Play Statistics
This page breaks out the number of big plays a team has generated over the season in total and by rushing and passing, the percent of big plays to overall plays and the number of big plays they allow by opponents.
The higher the big play +/- the better as this shows the team more often generates big plays than gives them up.