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Rehor's Law

Do winning teams tend to have better fantasy defenses?

When we last spoke on Friday, Bill Rehor was asking about wins and defenses. He put forth the theory that maybe instead of spending too much time scouting secondaries, kick returners and pass rushers, maybe we should just select defenses from teams that are going to win a bunch of games.

If a team wins a bunch, shouldn’t its defense rake up more points? That was Bill’s question.

So I looked into it some.

In the last 10 years, 29 teams have won at least 13 games. And this group backs up the Rehor Hypothesis nicely. Of 29 teams, 21 of them ranked in the top 10 in fantasy defense. All but four of them ranked in the top 12, which is pretty damn impressive. Only four misses in there; those teams ranked 16th, 22nd, 23rd and 28th in fantasy points.

(By the way, on this thing, I’m using the scoring system of 6 points for touchdowns on defense or special teams, 2 for takeaways and 1 for sacks.)

So there is some teeth in this Rehor’s Law. If you are confident that a team is going to win 13-plus games, then you should select its defense, because the trends indicate you have over an 85 percent chance of having a good fantasy defense (one ranking in the top 12).

Looking at the 2014 season, if you’re confident that Denver, New England, Seattle or San Francisco will win 13-14 games, you should probably select the defense of that team.

Here’s the supporting documentation. The chart below, “points” are NFL points – 6 points for touchdowns and 2 for safeties.

DEFENSES WITH 13-PLUS WINS SINCE 2003
YearTeamWinsPointsSacksTARank
2003New England144441411
2003Kansas City134236374
2004New England143045365
2004Pittsburgh153241328
2004Philadelphia1312472816
2005Indianapolis142446315
2005Seattle131850279
2005Denver1320283612
2006Chicago135640441
2006Baltimore134060402
2006San Diego141861285
2007New England164847313
2007Dallas132446299
2007Green Bay1336362810
2007Indianapolis1322283711
2008Tennessee132444317
2009New Orleans135435391
2009San Diego133235259
2009Indianapolis1418342623
2010New England145436381
2010Atlanta1330313112
2011Green Bay154229383
2011San Francisco132042384
2011New England132440346
2011New Orleans1324331628
2012Denver135252243
2012Atlanta1312293122
2013Seattle132844392
2013Denver1330412612

But alas, it’s never quite that easy. Right now, in May, we don’t KNOW which teams will win 13-plus games. We can only guess/forecast/predict.

So let’s go back and look at those teams again. This time, we’re not looking at teams winning 13-plus games. We’re instead looking at those same teams, only how they did the NEXT season.

In this case, 27 teams are in the sample set. Of those 27, only 7 of them ranked in the top 10 in fantasy defense, which is actually below how you’d do by selecting them randomly – alphabetically, darts, whatever.

Only 9 of the 27 – a third – finished in the top 12, which is almost exactly average.

Lots of crappy teams in there.

Comparing the two groups, defenses that won 13-plus games averaged 5 touchdowns, 41 sacks and 32 takeaways. The next year, those same defenses averaged 4 touchdowns, 37 sacks and 27 takeaways.

There is some correlation between winning games and scoring defensive fantasy points. And that totally makes sense. If a team averages 5 interceptions and 5 takeaways per game, you would expect that team to win 15-16 games. But that doesn’t necessarily mean it will happen again the next year (just like there’s no way Peyton Manning is tossing 55 touchdowns or that Jamaal Charles is getting in the end zone 19 times).

To me, the value here is bumping a defense up a little if, come August, you see them in a few preseason games and you’re very confident they’re going to win 12-14 games. New England, Denver, Seattle could easily fit that profile, and I think they all belong in the top half-dozen defenses in a fantasy draft right now.

DEFENSES WITH 13 WINS (THE NEXT YEAR)
YearTeamWinsPointsSacksTARank
2004New England143045365
2004Kansas City724402020
2005Pittsburgh112047306
2005Philadelphia618292725
2005New England1012331830
2006Seattle918412614
2006Denver912353016
2006Indianapolis1212252629
2007San Diego114842481
2007Chicago75041332
2007Baltimore524322323
2008Green Bay65427283
2008Dallas914592211
2008Indianapolis1224302615
2008New England116312229
2009Tennessee824322718
2010San Diego920472215
2010Indianapolis1030302121
2010New Orleans1114332525
2011New England132440346
2011Atlanta1018332915
2012New England124437412
2012Green Bay1124472315
2012New Orleans730302617
2012San Francisco11.520382519
2013Denver1330412612
2013Atlanta418322127

—Ian Allan

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