Who has the better defense? Chiefs vs. Eagles

People keep saying that the Eagles have the best defense in the league, so I decided to compare the Chiefs stats against theirs to see how the two matched up. However I decided to focus on games played against other playoff teams, because I felt that the data would be more accurate this way.

For reference, here are their stats for the regular season (not including week 18 because both teams rested starters):

Team Total yards allowed YPG Total points allowed PPG Games played
Chiefs 4972 310.8 288 18 16
Eagles 4494 280.9 290 18.1 16

The Eagles have a slight advantage in yards, while the PPG is almost identical. All in all, pretty damn close.

But now, here are their stats when facing playoff teams:

In the regular season:

Team Total yards allowed YPG Total points allowed PPG Games played
Chiefs 2549 318.6 144 18 8
Eagles 2543 325.9 168 24 7

Including playoff games:

Team Total yards allowed YPG Total points allowed PPG Games played
Chiefs 3259 325.9 187 18.7 10
Eagles 3642 363.3 223 22.3 10

YPG - Yards per game

PPG - Points per game

All averages rounded to nearest tenth

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Conclusion: The Chiefs win in every category, but what's most surprising is the difference in PPG. The Chiefs averaged 18 PPG while the Eagles averaged 24 PPG, a 6 point difference. In terms of YPG, the Chiefs win that too, albeit with a less significant margin of 37.4 yards.