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KSU Possession Success rates
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anti-zip Offline
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Post: #1
KSU Possession Success rates
I know this isn't an APBRmetrics board but I figured some of you might find this interesting. I'm a big believer in the value of in-depth statistical analysis and high level metrics in basketball and have done some work in this area.

One particular formula I've been working on is a ratio between how often a player ends a possession successfully compared to how often they end it with a failure. The basic idea is to take a basketball game which is an inherently continuous event and break it into discrete events (possessions) and analyze the outcomes of the possessions. Because we are limited in what stats are actually recorded it's more than just pulling numbers from a box score there is some upper level math and probability theory involved as well.

At this point in the season I thought it would be interesting to see how Kent's players/team score compared to last year and compared to our MAC East opponents. Think of these numbers as an assist to turnover ratio for a player’s entire offensive game.

Code:
        (2011-2012)  |    (2010-2011)
Mark Henniger    1.042        0.856
Carlton Guyton    0.996        0.982
Michael Porrini    0.969        0.947
Randal Holt    0.881        0.817
Kris Brewer    0.841        na.
Justin Manns    0.805        1.026
Chris Evans    0.801        na.
Eric Gaines    0.728        0.682
Justin Greene    0.712        0.823
Dev Manley    0.647        na.
Patrick Jackson    0.459        na.
Robert Johnson    0.459        0.460
Brian Frank    0.083        0.4

KSU:        0.819        0.864
Opponent:    0.690        0.788


The things that stand out to me are the consistency of Guyton and Porrini, the significant dip Greene and Manns have both shown from last year to now, and how impressively high Brewer scored for a freshman.

Here's how the other MAC East teams scored so far this year:
Code:
Buff:        0.943    
Opponents:    0.745

Akron:        0.853    
Opponents:    0.695

OU:        0.874    
Opponents:    0.692

Miami:        0.756    
Opponents:    0.900

BG:        0.884    
Opponents:    0.840

KSU:        0.819
Opponent:    0.690

Some notable player’s numbers:
Code:
Javon McCrea:    1.129
Mitchell Watt:    1.107
Zeke Marchall:    1.059
Alex Abreu:    1.246
Brian Walsh:    1.027
DJ Cooper:    1.044
Nick Kellogg:    0.964
Julian Mavunga:    0.822
Brian Sullivan:    0.949
Scott Thomas:    0.933
JordonCrawford:    0.947
Torian Oglesby:    1.794

Obviously Oglesby is built for this kind of stat (if you haven't heard about his NCAA record Google it, it's impressive). Like any metric this stat has its limitations. The main one is this is an offensive only stat and defensive specialists (Eric Gaines) will be undervalued. Conclusions can be drawn about a team’s defense by looking at the opponents score. Also, this is not meant to be read as who is a better player but more who is an efficient player. For example, thus far Henniger has been more efficient than Greene but if Henn was relied on for the volume Greene is his score would likely be lower.

Anyways, thought this might interest some of you. Questions/comments are welcome.
(This post was last modified: 01-06-2012 08:34 AM by anti-zip.)
01-05-2012 09:30 PM
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dannyb73 Offline
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Post: #2
RE: KSU Possession Success rates
So you probably loved the movie MONEYBALL?
01-05-2012 11:59 PM
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anti-zip Offline
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RE: KSU Possession Success rates
Eh, the book was better lol.
01-06-2012 12:14 AM
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dannyb73 Offline
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Post: #4
RE: KSU Possession Success rates
I heard that. Sadly, I don't love to read books. I would rather watch the movie and be done with it in 2 hours.
01-06-2012 12:23 AM
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burden Offline
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Post: #5
RE: KSU Possession Success rates
danny somehow I guessed you were not very patient!!

Anti-Zip you did not show the Kent team score.
01-06-2012 07:42 AM
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anti-zip Offline
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Post: #6
RE: KSU Possession Success rates
Burden, it's at the bottom of the first box with the Kent players scores. It's slightly worse than last year but the opponent score is slightly better. I'll edit it to but it in the same box as the other MAC east teams too so it's easier to compare.
01-06-2012 08:33 AM
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burden Offline
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Post: #7
RE: KSU Possession Success rates
Sorry. Missed the scroll bar.
01-06-2012 12:59 PM
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anti-zip Offline
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Post: #8
RE: KSU Possession Success rates
No problem, I didn't really want the scroll bars there I don't know of a way to get rid of them though.

Also, I wanted to make it clear how to read the numbers. A score of 1.00 would mean for every 1 possession the player ends successfully they end 1 with a failure. So like 0.800 would mean for every 8 successful possessions there are 10 failed possessions, etc. It's like an expanded assist to turnover ratio.
01-06-2012 06:10 PM
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