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<blockquote data-quote="Magooch" data-source="post: 1076771" data-attributes="member: 17987"><p>I'm just curious with regards to PFF grades, I have never really dug in to much to how they arrive at their final numbers....I know that about 60 is considered "average" but is that also more or less their "starting point"?</p><p></p><p>Point of comparison... there are a lot of similar stats sites who offer similar "performance grades" in soccer on a match by match basis. But most of those are largely additive/subtractive. They all have their own twists and particular algorithms and whatnot, but broadly speaking you'll start a match with roughly a 6/10 rating. Positive actions throughout a match will push that upwards, negatives will ding it downwards. </p><p></p><p>now as I understand it I DO think PFF uses a similar system, they grade every player for every play with a -2 to +2 range and a neutral 0 as the "most likely" or "expected" outcome. But what is not clear to me is where their scoring's starting point is. If a player starts at a 60 and does everything he is "expected" to do, he finishes with a 60 give or take a few. </p><p></p><p>Anyhow, the tricky thing you have to keep in mind too is that while they are time-bound (or in this case snap counts I guess), my understanding is that these scores ARE cumulative...and so in that sense if you only play 10 snaps, even if all 10 are perfectly played, "above expectation" snaps, the best you could do is add +20 to your grading (and again, starting from...?) - on the flip side if you absolutely flop for 10 snaps the worst it does is -20. But as a secondary factor of this, if you don't get a ton of snaps, then you just don't get a ton of opportunity to help (or hurt) your score. </p><p></p><p>So, not sure where I was really going with that, but it's something to keep in mind at least.</p><p></p><p>If you start at zero and work your way up for instance...Kraft played 58 snaps. That means he earned on average +1.6 PFF "points" per snap he played. Which is basically to say every snap worked out to being WELL above average. By the same measure hypothetically speaking if you started at a baseline score of 60, it would be a per snap score of about +0.58</p></blockquote><p></p>
[QUOTE="Magooch, post: 1076771, member: 17987"] I'm just curious with regards to PFF grades, I have never really dug in to much to how they arrive at their final numbers....I know that about 60 is considered "average" but is that also more or less their "starting point"? Point of comparison... there are a lot of similar stats sites who offer similar "performance grades" in soccer on a match by match basis. But most of those are largely additive/subtractive. They all have their own twists and particular algorithms and whatnot, but broadly speaking you'll start a match with roughly a 6/10 rating. Positive actions throughout a match will push that upwards, negatives will ding it downwards. now as I understand it I DO think PFF uses a similar system, they grade every player for every play with a -2 to +2 range and a neutral 0 as the "most likely" or "expected" outcome. But what is not clear to me is where their scoring's starting point is. If a player starts at a 60 and does everything he is "expected" to do, he finishes with a 60 give or take a few. Anyhow, the tricky thing you have to keep in mind too is that while they are time-bound (or in this case snap counts I guess), my understanding is that these scores ARE cumulative...and so in that sense if you only play 10 snaps, even if all 10 are perfectly played, "above expectation" snaps, the best you could do is add +20 to your grading (and again, starting from...?) - on the flip side if you absolutely flop for 10 snaps the worst it does is -20. But as a secondary factor of this, if you don't get a ton of snaps, then you just don't get a ton of opportunity to help (or hurt) your score. So, not sure where I was really going with that, but it's something to keep in mind at least. If you start at zero and work your way up for instance...Kraft played 58 snaps. That means he earned on average +1.6 PFF "points" per snap he played. Which is basically to say every snap worked out to being WELL above average. By the same measure hypothetically speaking if you started at a baseline score of 60, it would be a per snap score of about +0.58 [/QUOTE]
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