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Fantasy football: Best and worst matchups at each position for NFL Week 4

What expectations should fantasy football managers have for rookie quarterback Joe Borrow when he and the Cincinnati Bengals face the Jacksonville Jaguars in Week 4? AP Photo/Chris Szagola

Matchups play a huge part in fantasy managers' weekly lineup decisions. When choosing between two (or more) similarly talented players, the decision often boils down to: Which one has the best matchup?

We use that word -- matchups -- a lot. But what, exactly, constitutes a favorable or unfavorable matchup?

This is where the "Matchups Map" comes in. Each week, I'll provide a schedule-independent method to determine strength of positional matchups, using the most recent, relevant data. Check back for updated numbers each week, including matchups highlights at each position -- both favorable and unfavorable -- based upon those statistics. For these purposes, we will use PPR (Point Per Reception) scoring.

The maps include two measures: The first, "Rk," is my personal ranking of how favorable/unfavorable I consider that positional matchup; the second, "Adj. FPA," reflects how far above or below a player's average that defense held opponents at that position. For Week 4, we'll use 2020 data (three weeks are already in the books), but starting in Week 6, we'll use the most recent five weeks.

Finally, a couple of caveats: The "Adj. FPA" statistics in this week's column represent only a three-week, smaller-than-usual sample, so my personal ranking ("Rk") won't fall quite in line as it will in future weeks.

Also, remember that matchups are only one ingredient in my rankings formula. Not every favorable matchup should be exploited, and not every unfavorable matchup should be avoided. To get the most complete recipe for whom to start and sit, consult my weekly rankings.

Quarterbacks