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I feel like Clark Kent...

...I've discovered new powers and have no idea how to harness them.

Those new powers are called Points Per Play and a new and improved Turnover Costliness.

By assigning a point value to each yard line (from the avg points per possession graph I discussed at the bottom of the updated Beyond the Box Score Glossary), I can conceivably add a point value to each play run by comparing the point value of the beginning yard line of a play to the end yard line.

For example, let's look at Mizzou's go-ahead TD drive of the third quarter against OU on Saturday:

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1st-and-10, OU 46 (point value: 2.48): incomplete pass (pts = 0.0)
2nd-and-10, OU 46: Washington 2-yard run to OU 44 (PV: 2.60) (pts = 2.60 - 2.48 = 0.12)
3rd-and-8, OU 44: Rucker 10-yard reception to OU 34 (PV: 3.30) (pts = 0.70)
1st-and-10, OU 34: Daniel 5-yard run to OU 29 (PV: 3.57) (pts = 0.27)
2nd-and-5, OU 29: Coffman 13-yard reception to OU 16 (PV: 4.17) (pts = 0.60)
1st-and-10, OU 16: Jimmy Jackson 4-yard run to OU 12 (PV: 4.53) (pts = 0.36)
2nd-and-6, OU 12: Saunders 8-yard run to OU 4 (PV: 4.96) (pts = 0.43)
1st-and-goal, OU 4: Jimmy Jackson 4-yard run to endzone (PV: 7.00) (pts = 2.04)

So for the drive...
Jimmy Jackson = 2.40 points
Martin Rucker = 0.70 points
Chase Coffman = 0.60 points
Tommy Saunders = 0.43 points
Chase Daniel = 0.27 points
Derrick Washington = 0.12 points
TOTAL = 4.52 points

But the TD was worth 7.00 points (duh)...what happened to the other 2.48 points?  They were created by forcing (and recovering) the Juaquin Iglesias fumble.

That brings us to Turnover Costliness.  For all intents and purposes, the turnover was worth 2.48 points, split somehow by Justin Garrett (who forced the fumble) and Connell Davis (who recovered it).

I mentioned wanting a better way of measuring turnover costliness, and I think I found it.  We could go about this a couple different ways.  We could simply say the fumble was worth 2.48 because Mizzou got the ball at the OU 46, and we could be done with it.  That's the cleanest way.  But I still think turnovers matter in two ways: how likely was the victimized team (OU in this case) to score before they turned it over, and how likely is the victimizing team (MU) to score now that they have the ball?  In this case, you compare old field position to new field position and average the two.  OU having the ball on their own 46 would have been worth 2.01 points for OU.  MU starting on OU's 46 was worth 2.48 for MU.  The average of that is 2.25.

So...taking the aggregated Points Per Play for the whole game and adding in the Turnover Costliness points, here are the 'scores' for Mizzou's games this season:

Mizzou 43.92, Illinois 34.08 (real score: 40-34)
Mizzou 42.53, Ole Miss 33.29 (real score: 38-25)
Mizzou 53.44, Western Michigan 27.43 (real score: 52-24)
Mizzou 36.81, Illinois State 30.47 (real score: 38-17)
Mizzou 39.19, Nebraska 13.23 (real score: 41-6)
Oklahoma 39.05, Mizzou 32.43 (real score: 41-31)

That's pretty damn close, is it not?  

On average, the Mizzou score is off by 1.39 points and the opponent score is off by 5.09.  The difference could be explained by a lot of different things:

  • special teams - if field position matters so much in these examples, then special teams need to be factored in somehow considering they're responsible for a majority of starting field position, not to mention the occasional TD.
  • luck - an oblong ball bounces weird sometimes
  • something we'll call the Bend-But-Don't-Break Quotient - we all know that, judging by yards allowed, Mizzou should have given up more points than they did in most games.  Maybe this is a way to actually measure a defense's ability to bend without breaking?

I've got a long way to go with this idea, but I'm enough of a nerd that I'm pretty jacked up about this.  The sky's the limit in nerddom right now.

Oh, and in case you're curious...here are the 'points per game' figures (for rushes and receptions) that emerge from the above Points Per Play formula...this doesn't take special teams, which would obviously significantly aid Jeremy Maclin, into account.

Missouri
Jeremy Maclin = 6.39 PPG
Martin Rucker = 5.54 PPG
Tony Temple = 5.07 PPG
Will Franklin = 4.57 PPG
Danario Alexander = 3.62 PPG
Chase Coffman = 3.46 PPG
Chase Daniel = 2.97 PPG
Derrick Washington = 1.26 PPG
Jimmy Jackson = 1.08 PPG
Chase Patton = 1.08 PPG
Marcus Woods = 0.88 PPG
Greg Bracey = 0.75 PPG
Jared Perry = 0.64 PPG
Earl Goldsmith = 0.34 PPG
Jason Ray = 0.12 PPG
NET PENALTIES (Defensive penalties - Offensive penalties) = -0.59 PPG

Texas Tech
Michael Crabtree = 12.90 PPG (!!!)
Danny Amendola = 7.11 PPG
Shannon Woods = 6.37 PPG
Eric Morris = 3.55 PPG
Grant Walker = 2.27 PPG
Ed Britton = 2.02 PPG
Kobey Lewis = 1.87 PPG
L.A. Reed = 1.38 PPG
Detron Lewis = 1.26 PPG
And so on...

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Wow...

I think my brain just imploded from number overload.

I think we've found our own Phil Steele...

by rptgwb on Oct 19, 2007 11:49 AM CDT   0 recs

heh...

...I'll say this much: I will NEVER toot my own horn as much as Mr. PS does.  Love that guy's magazine, but he must separate his shoulder from how much he pats himself on the back...

by The Boy on Oct 19, 2007 12:04 PM CDT to parent up   0 recs

Special Teams

Is the extra point being automatically considered?  I would argue the turnover should only be worth 1.48 since the extra point cannot even occur until the TD.  I can see how you might want to attribute all 7 points to what happens on the field, but I believe that detracts from the importance of special teams.  Also, does this formula give automatic points for field position?  For example, let's say Mizzou calls for a fair catch on a punt at their own 30.  Does the system automatically award them the points it would take to drive from their own goal line, even if we go three and out?

by jgraham on Oct 20, 2007 8:04 AM CDT   0 recs

that's what I'm still playing around with...

I still want to account for that difference (the 1.39 for Mizzou and 5.09 for opponents), but using the special teams numbers I have, I haven't figured out how to do that yet.  

The one way I tried so far was this:  for kickoffs, simply use the point value of your starting field position; for punts, subtract the point value of your starting field position from the point value of wherever the punt took place...making punts a negative point value for whoever did the punting.  Either way, I haven't been able to get any closer than what I did without using special teams at all.  Still working on that one...

As for extra points...I played around with that too.  Maybe I should have made the max possession points 6 and altered the graph that way, but...heh, like I said...it's a brand new toy...still figuring out what to do with it.

by The Boy on Oct 20, 2007 8:52 AM CDT to parent up   0 recs

actually...

...I did when RMN got kicked up a couple weeks ago, just to let them know that there was one nerd out there willing to enter play-by-play for cfb...would need another 10-12 to get everything entered, but I figured once I came up with some stats that were beyond the ones I simply copied from FO, I'd contact them again...I think the points-per-play thing is a step in the right direction...

by The Boy on Oct 20, 2007 8:53 AM CDT   0 recs

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