## WR Expected Catch Rate

One of the neat features on the individual stat pages are some receiver stats you don't typically see. There's targets, target percentage, yards per target, catch rate, and deep percentage. Occasionally you'll find target stats on conventional stat sites, but I think target percentage is more interesting--the percentage of team targets each receiver gets.

The other day I was sorting the WR stats page by Catch Rate (CR), which is simply receptions per target. I wanted to see which guys had the better hands. To no surprise, catch rate is closely related to how often a receiver is thrown deep balls. Deep% is the proportion of targets thrown in the air deeper than 15 yds past the line of scrimmage. The relationship between CR and Deep% for receivers with at least 40 targets in 2009 is plotted below. The relationship in 2010 shows virtually the same pattern, but is slightly more scattered because of the smaller sample.

I thought it might be interesting to calculate the expected CR of each receiver based on his Deep%, then calculate the difference between his expected and actual CR. Graphically, the difference between expected and actual CR is the vertical distance between each receiver's data point and the trend line. This might give us an idea of who the receivers are who can reliably pull in the most passes. Obviously, there are more factors in play than just the receiver's performance, including the QB, offensive line, other team receivers, game situations and opponents, among other factors. But the correlation is considerable at 0.47, and at the very least, it's one piece of the puzzle.

For the 2010 season (through week 6), here are the leaders in Catch Rate Above Expected. There seems to be some sort of connection between having a hyphen in your surname and dropping passes.

 Rank Player Team %Deep CR(%) ExpCR Difference 1 A.Collie IND 24.1 81.5 59.8 21.7 2 K.Walter HST 21.4 78.6 60.9 17.7 3 J.Maclin PHI 41.7 69.4 53.2 16.2 4 J.Shipley CIN 15.8 78.9 63.0 15.9 5 M.Thomas JAX 29.3 70.7 57.9 12.8 6 J.Avant PHI 16.7 75.0 62.7 12.3 7 R.Wayne IND 30.8 69.2 57.3 11.9 8 M.Manningham NYG 42.9 64.3 52.7 11.6 9 D.Driver GB 23.1 71.8 60.2 11.6 10 R.Moss MIN 62.5 56.3 45.3 11.1 11 R.Williams DAL 32.3 67.7 56.7 11.0 12 M.Austin DAL 21.7 71.7 60.8 10.9 13 S.Breaston ARZ 25.0 70.0 59.5 10.5 14 D.Branch NE 16.7 72.2 62.7 9.5 15 S.Moss WAS 29.1 67.3 57.9 9.4 16 A.Boldin BLT 29.2 66.7 57.9 8.8 17 M.Williams TB 59.5 54.8 46.4 8.4 18 D.Bess MIA 5.6 75.0 66.9 8.1 19 H.Ward PIT 30.8 65.4 57.3 8.1 20 J.Gaffney DEN 18.9 69.8 61.8 8.0 21 M.Floyd SD 56.8 54.5 47.4 7.1 22 W.Welker NE 6.7 73.3 66.5 6.8 23 R.Parrish BUF 31.8 63.6 56.9 6.7 24 D.Bryant DAL 28.6 64.3 58.1 6.2 25 S.Smith NYG 31.5 63.0 57.0 6.0 26 E.Royal DEN 17.0 68.1 62.5 5.6 27 M.Colston NO 20.0 66.7 61.4 5.3 28 C.Stuckey CLV 14.3 67.9 63.6 4.3 29 E.Bennett CHI 8.7 69.6 65.7 3.9 30 H.Nicks NYG 24.6 63.2 59.7 3.5 31 R.White ATL 24.6 62.3 59.7 2.6 32 A.Johnson HST 34.5 58.2 55.9 2.3 33 A.Randle El PIT 33.3 58.3 56.3 2.0 34 J.Nelson GB 23.8 61.9 60.0 1.9 35 J.Knox CHI 47.1 52.9 51.1 1.8 36 K.Britt TEN 29.6 59.3 57.8 1.5 37 L.Moore NO 18.5 63.0 62.0 1.0 38 C.Johnson DET 45.5 52.7 51.7 1.0 39 D.Mason BLT 37.2 55.8 54.9 0.9 40 J.Jones GB 37.0 55.6 54.9 0.7 41 D.Nelson BUF 18.8 62.5 61.9 0.6 42 B.Marshall MIA 28.6 58.7 58.1 0.6 43 J.Jones HST 7.4 66.7 66.2 0.5 44 D.Butler SEA 25.0 60.0 59.5 0.5 45 N.Washington TEN 50.0 50.0 50.0 0.0 46 B.Edwards NYJ 34.2 55.3 56.0 -0.7 47 D.Henderson NO 24.1 58.6 59.8 -1.2 48 L.Evans BUF 41.4 51.7 53.3 -1.6 49 M.Williams SEA 14.7 61.8 63.4 -1.6 50 D.Amendola SL 3.6 65.5 67.6 -2.1 51 B.Lloyd DEN 35.9 53.1 55.4 -2.3 52 G.Jennings GB 36.8 52.6 55.0 -2.4 53 M.Wallace PIT 48.0 48.0 50.8 -2.8 54 D.Bowe KC 50.0 46.9 50.0 -3.1 55 D.Jackson PHI 35.1 51.4 55.7 -4.3 56 C.Ochocinco CIN 17.8 57.8 62.2 -4.4 57 B.Hartline MIA 41.9 48.4 53.1 -4.7 58 D.Hester CHI 32.0 52.0 56.8 -4.8 59 P.Harvin MIN 22.2 55.6 60.6 -5.0 60 L.Murphy OAK 38.5 48.7 54.4 -5.7 61 J.Cribbs CLV 28.0 52.0 58.4 -6.4 62 C.Davis SD 27.6 51.7 58.5 -6.8 63 M.Clayton SL 19.0 54.8 61.8 -7.0 64 J.Morgan SF 23.5 52.9 60.1 -7.2 65 J.Cotchery NYJ 23.7 52.6 60.0 -7.4 66 T.Owens CIN 25.0 51.7 59.5 -7.8 67 L.Fitzgerald ARZ 33.3 48.1 56.3 -8.2 68 S.Smith CAR 20.0 52.0 61.4 -9.4 69 M.Crabtree SF 15.6 53.3 63.1 -9.8 70 St.Johnson BUF 9.7 54.8 65.3 -10.5 71 M.Sims-Walker JAX 22.2 50.0 60.6 -10.6 72 H.Douglas ATL 28.1 46.9 58.3 -11.4 73 S.Stroughter TB 16.7 50.0 62.7 -12.7 74 D.Gettis CAR 22.7 45.5 60.4 -14.9 75 D.Heyward-Bey OAK 40.5 37.8 53.6 -15.8

### 15 Responses to “WR Expected Catch Rate”

1. Anonymous says:

Where does the "deep" data come from?

2. Anonymous says:

Deep% is the proportion of targets thrown in the air deeper than 15 yds past the line of scrimmage.

3. Anonymous says:

A minor nitpick, but whats the deal with CLV, SL, BLT and HST abbreviations instead of CLE, STL, BAL and HOU like people usually use?

4. Anonymous says:

Does Randy Moss data include his stint in NE?

5. Brian Burke says:

Yes. Ditto for Branch and SEA.

6. Brian Burke says:

CLV, SL, BLT, HST, and ARZ are what the NFL officially use.

CLE, STL, BAL, HOU, and ARI are what everyone else uses.

7. Brian says:

Have you looked at trying to determine a league-wide expected catch rate vs. pass attempt distance? We know, roughly, the probability of making a 30-yd field goal; what's the probability of catching a 30-yd pass?

8. Brandon says:

Brian,
This is a great article. Hopefully you can post updates quarterly, or at least at the end of each year.

>.But the correlation is considerable at 0.47, and at the very least, it's one piece of the puzzle.

This is good to know also, thank you for mentioning it.

9. tgt says:

@Brian,

Are some of the media abbreviations already used in official NFL stats? Like HOU for Oilers or BAL for the old Colts? I can see the media falling back into what they are used to, even though the NFL decided they needed a new value.

Have you looked at correlation from year to year in CR% over ExpCR? If there is a strong correlation for QB/WR tandems, is there enough turnover of WRs and QBs to try to split some of the CR% between the 2 positions? I suspect there'd be pretty low confidence in the latter, but it might be interesting to look at.

10. Florida Danny says:

Brian-

Since I know you enjoy clever acronyms, did you consider that this stat is perfect for one? Specifically,

Catch
Rate
Above
Predicted

11. Brian Burke says:

Good one

12. Anonymous says:

Semi Worthless stat because of the QB. Lets see what Larry Fitzgerald's numbers were when he had Kurt Warner tossing the ball to him.

13. Britt says:

This would be great if dropped passes were a stat available in play by play, not just targets.

I think a better way to look at these specific stats is for comparison between WR's on a team, since that takes the QB and most play calling out of the equation.

14. Jared Doom says:

Brian,

Are you aware of a way to extract yards-after-catch (YAC) data from the NFL play-by-play data available on your site? Perhaps the use of "air yards" per catch would be more explanatory than a "deep or not deep" dummy variable.

15. Dadalus says:

It's interesting that the NYG had 3 deep threats by the time I got down to NE's deep threat: D. Branch... I'm sure Ocho and Underwood were meant to be a deep threat, but they were supposed to fill the greatest deep threat in the NFL: R. Moss. Will the Pats continue to look for a Manningham/Cruz in next years draft?

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