PFF EDGE grants you access to the most popular Player Grades features, as well as many more. Position rankings, player grades, and snap counts for the current season On a 0-100 scale, grades are assigned to each aspect of a player's game (receiving, run blocking, coverage, etc.). Those grades are then combined to create a score. The higher your grade is within its category, the higher your score will be. There are also special badges that can be earned throughout your Edge account. Some examples of these grades include: Run Block Grade, which measures how successful a player is at keeping his offensive line clean of debris while running their routes; Coverage Grade, which looks at how effective a player was in coverage; and Overall Grade, which combines the other grades together. These numbers are updated daily following NFL games. They look at both sides of the ball so you know where players are ranked across the board. These numbers are designed to help guide your decision making process when it comes to free agency and the draft. For example, if you want to know who has the highest chance of success being brought back by their team this year, those players are the ones who will have higher overall grades. Also, if you want to see who might be worth trading for, those will be the guys with high trade value. Check out the best players at each position here on ESPN+.