Aaron Rudnicki, on 09 Oct 2014 - 11:10 AM, said:
swirvenirvin, on 09 Oct 2014 - 10:49 AM, said:
Aaron Rudnicki, on 09 Oct 2014 - 10:19 AM, said:
swirvenirvin, on 09 Oct 2014 - 07:39 AM, said:what I think I am saying is PFF does all this for you
I don't see tackle opportunities listed in their table, even though they refer to them in the text.
got it so just using assists and a % of total tackles isnt enough you think
it's a big part of the picture, but some games have more plays/tackle opportunities than others so I try to factor that in as well to minimize impact of team playing styles. for example, seattle in recent years tends to get off the field on 3rd downs due to their defense and then shorten the game by running the ball effectively. this will limit the number of plays and tackle opportunities in that stadium compared to philadelphia usually. lots of incomplete passes can drive the numbers down as well.
Here's what the week 5 numbers look like as an example:
TOPS SOLO ASST T/OPP ASST/TOT
NYG 104 100 50 1.44 33%
WAS 96 67 54 1.26 45%
NE 104 69 60 1.24 47%
SD 97 92 24 1.20 21%
CAR 99 60 58 1.19 49%
SF 90 80 27 1.19 25%
GB 97 74 41 1.19 36%
IND 103 78 42 1.17 35%
NO 105 79 37 1.10 32%
TEN 111 82 40 1.10 33%
DET 97 85 21 1.09 20%
DAL 108 92 24 1.07 21%
JAX 93 81 14 1.02 15%
PHI 112 93 14 0.96 13%
DEN 92 79 7 0.93 8%
[SIZE=10pt]not sure if formatting will work or not here, but [/SIZE]there were a lot more tackle opportunities in Tennessee and Philadelphia compared to the games in San Francisco and Denver.
If you rank by Tackles Per Opportunity, you don't get the same results as looking at assists as a percentage of total tackles, but they are heavily correlated. That PFF article mentions Tennessee as being favorable, but for the metric I prefer they only ranked about average here (1.10 tackles/opp)
also, that PFF article mentions 1.77 tackles per opportunity in the Giants game but I'm only seeing 1.44 so not sure what they are using for a denominator.
BTW, prime time game in Houston tonight. Not seeing much of an edge there. Through 2 home games this year, they rank near the bottom in average tackle opportunities/game (99.0) and are average with regard to tackles/opportunity (1.13). Their numbers in 2013 were very similar.
EDIT: I think they are counting special teams tackles, and tackles after turnovers. I haven't been so that would probably explain some of the differences.
EDIT AGAIN: Seattle actually has the 2nd most tackle opps per game this year (110.5 is right behind Philly with 112.7). San Francisco ranks dead last with 92.7. Next most is Detroit with 98.