The Eagles have outscored their opponents by 17 points this year, but Philadelphia is obviously trending in the wrong direction. The Eagles began 3-0 with wins of 19, 15, and 31 points, but have now lost five games in a row.
So what if instead of using traditional points differential, what if we used a weighted version based on when the game occurred? To do this, we multiply the Eagles points differential in each game this season by the game number; that means the team’s third game counts for three times as much as the first game, and the ninth game counts for three times as much as the third game. With 14 games so far this year, to determine the team’s weighted points differential, we sum the weighted results and divide by 105 (14+13+12+11…+1).
By doing this, Philadelphia’s points differential moves from +1.21 to -3.72. Here’s how:
Week | Team | H/R | Opponent | PF | PA | Diff | Gm# | Mult |
---|---|---|---|---|---|---|---|---|
1 | Philadelphia Eagles | Cleveland Browns | 29 | 10 | 19 | 1 | 19 | |
2 | Philadelphia Eagles | @ | Chicago Bears | 29 | 14 | 15 | 2 | 30 |
3 | Philadelphia Eagles | Pittsburgh Steelers | 34 | 3 | 31 | 3 | 93 | |
5 | Philadelphia Eagles | @ | Detroit Lions | 23 | 24 | -1 | 4 | -4 |
6 | Philadelphia Eagles | @ | Washington Redskins | 20 | 27 | -7 | 5 | -35 |
7 | Philadelphia Eagles | Minnesota Vikings | 21 | 10 | 11 | 6 | 66 | |
8 | Philadelphia Eagles | @ | Dallas Cowboys | 23 | 29 | -6 | 7 | -42 |
9 | Philadelphia Eagles | @ | New York Giants | 23 | 28 | -5 | 8 | -40 |
10 | Philadelphia Eagles | Atlanta Falcons | 24 | 15 | 9 | 9 | 81 | |
11 | Philadelphia Eagles | @ | Seattle Seahawks | 15 | 26 | -11 | 10 | -110 |
12 | Philadelphia Eagles | @ | Green Bay Packers | 13 | 27 | -14 | 11 | -154 |
13 | Philadelphia Eagles | @ | Cincinnati Bengals | 14 | 32 | -18 | 12 | -216 |
14 | Philadelphia Eagles | @ | Washington Redskins | 22 | 27 | -5 | 13 | -65 |
15 | Philadelphia Eagles | @ | Baltimore Ravens | 26 | 27 | -1 | 14 | -14 |
Average | 22.66 | 21.36 | 1.21 | -3.72 [1]This is the sum of the numbers in this column divided by 105, which is the sum of the numbers in the column to the immediate left. |
What if we use this methodology for every team? Well, the Falcons, who have now won back-to-back games by 28 points, jump to #1 with a +10.61 points differential. But perhaps more interestingly, it’s the Colts who have the biggest increase when moving from points differential to weighted points differential:
Rk | Team | G | Raw Pts Diff | Weighted Pts Diff | Change |
---|---|---|---|---|---|
1 | Indianapolis Colts | 14 | 1.64 | 4.68 | 3.03 |
2 | Tampa Bay Buccaneers | 14 | -0.64 | 2.09 | 2.73 |
3 | Atlanta Falcons | 14 | 7.93 | 10.61 | 2.68 |
4 | Chicago Bears | 14 | -5.14 | -3.22 | 1.92 |
5 | Cincinnati Bengals | 14 | -0.36 | 1.47 | 1.82 |
6 | Tennessee Titans | 14 | 1.21 | 2.73 | 1.52 |
7 | New York Giants | 14 | 1.57 | 3.04 | 1.47 |
8 | Miami Dolphins | 14 | 0.07 | 1.42 | 1.35 |
9 | Green Bay Packers | 14 | 1.71 | 2.90 | 1.18 |
10 | New Orleans Saints | 14 | 1.00 | 2.18 | 1.18 |
11 | Baltimore Ravens | 14 | 3.07 | 3.95 | 0.88 |
12 | Oakland Raiders | 14 | 2.93 | 3.78 | 0.85 |
13 | Detroit Lions | 14 | 1.14 | 1.70 | 0.56 |
14 | Washington Redskins | 14 | 0.14 | 0.62 | 0.48 |
15 | Pittsburgh Steelers | 14 | 4.64 | 5.06 | 0.41 |
16 | New England Patriots | 14 | 9.43 | 9.84 | 0.41 |
17 | Seattle Seahawks | 14 | 4.50 | 4.86 | 0.36 |
18 | Jacksonville Jaguars | 14 | -7.07 | -6.72 | 0.35 |
19 | Houston Texans | 14 | -3.14 | -3.05 | 0.10 |
20 | Carolina Panthers | 14 | -1.07 | -1.09 | -0.01 |
21 | Kansas City Chiefs | 14 | 3.21 | 3.19 | -0.02 |
22 | Dallas Cowboys | 14 | 7.71 | 7.07 | -0.65 |
23 | Buffalo Bills | 14 | 3.14 | 2.43 | -0.71 |
24 | New York Jets | 14 | -8.29 | -9.15 | -0.87 |
25 | Cleveland Browns | 14 | -13.43 | -14.69 | -1.26 |
26 | San Diego Chargers | 14 | 0.00 | -1.68 | -1.68 |
27 | Denver Broncos | 14 | 2.93 | 0.46 | -2.47 |
28 | San Francisco 49ers | 14 | -12.14 | -14.63 | -2.49 |
29 | Arizona Cardinals | 14 | 1.07 | -1.43 | -2.50 |
30 | Los Angeles Rams | 14 | -9.36 | -12.40 | -3.04 |
31 | Minnesota Vikings | 14 | 0.36 | -2.98 | -3.34 |
32 | Philadelphia Eagles | 14 | 1.21 | -3.72 | -4.94 |
Unsurprisingly, the Eagles rank a very distant #32, with the Vikings and Rams rounding out the bottom three. You probably could have guessed that, which makes me think this does a pretty good job of matching our intuitions.
References
↑1 | This is the sum of the numbers in this column divided by 105, which is the sum of the numbers in the column to the immediate left. |
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