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Division III Rutter Rankings for 2013-2014

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  • Division III Rutter Rankings for 2013-2014

    For games played through November 3, 2013

    Code:
      	Team 		Rating 	
    1 	Plattsburgh 	3.21
    2 	Gustavus Adol. 	2.37
    3 	Norwich 	1.97
    4 	Middlebury 	1.67
    5 	Bowdoin 	1.65
    6 	Elmira 		1.12
    7 	Saint Anselm 	1.09
    8 	Amherst 	1.08
    9 	St. Norbert 	0.95
    10 	Wis-Superior 	0.94
    Complete rankings can be found here: http://math.bd.psu.edu/faculty/rutter/D3_Rankings.html

    Full discloser: I am not a follower of the D-III games. Given the ever increasing number of D-III teams, I may have missed something. If something seems unusual, please let me know.

    FAQ

    Q. [Insert team here, like Middlebury] hasn't played a game yet. How can they be ranked?
    A. The power of Bayesian statistics. Each team has a prior rating based on last year, so early season rankings are possible. As more games are played, the effect of the prior is reduced.

    Q. Is home ice advantage included?
    A. No. Although I have estimates of home ice advantage for both the entire division and for each team, they are not included in these rankings. It emulates the NCAA criteria in this respect.

    Q. Is margin of victory (MOV) included?
    A. No, just wins, losses, and ties. Again, the NCAA doesn't use margin of victory and since the games are low scoring, I haven't found a satisfactory way to include MOV.

    Q. How do you include ties?
    A. If you look at the web page, you will see how ties are included. In short, I estimate a region that includes a probability of a tie which is larger when the teams are closely ranked. No "tie is half a win, half a loss" simplification here.

    Q. How does your method compare to RPI?
    A. The two are very different. I think my system (and KRACH) are a much better reflection of the quality of teams as statistical models are used as opposed to arbitrary alegbra. But I am biased. Someday, I will do a really complete comparission of the methods.

  • #2
    Re: Division III Rutter Rankings for 2013-2014

    Originally posted by LakersFan View Post

    Full discloser: I am not a follower of the D-III games. Given the ever increasing number of D-III teams, I may have missed something. If something seems unusual, please let me know.

    FAQ

    Q. [Insert team here, like Middlebury] hasn't played a game yet. How can they be ranked?
    A. The power of Bayesian statistics. Each team has a prior rating based on last year, so early season rankings are possible. As more games are played, the effect of the prior is reduced.

    I'm sure it's directly tied to the fact that the "prior rating" exists, and for a new team like Canton there can be no "prior rating" since they are a new program...but it does seem strange that they can end up where they are ahead of teams that won games...including the former new program that beat them twice this weekend.

    Is there a way for a new program to start with a prior rating equal to the lowest one from the past season so that they essentially have to earn their way past other teams and aren't artificially buoyed by their lack of prior rating?

    In the end, it's obviously not even close to a huge deal when you're dealing with one team and it's so early in the season too... it's just something that immediately jumped out at me as being noticeably odd.

    Comment


    • #3
      Re: Division III Rutter Rankings for 2013-2014

      Originally posted by claw View Post
      I'm sure it's directly tied to the fact that the "prior rating" exists, and for a new team like Canton there can be no "prior rating" since they are a new program...but it does seem strange that they can end up where they are ahead of teams that won games...including the former new program that beat them twice this weekend.
      Thanks for pointing this out, as this is an error on my part. Collegehockeystat.net has Canton listed as "Canton" in the standings, but as "SUNY Canton" on the results pages. I use the results page to get results, but the standings page to get the names of teams. Since the were not the same, Stevenson was not even credited with the two wins over Canton.

      That has been corrected and the wbepage has been updated (ingore the date as that is tied to the DI rankings). As you can see, Stevenson jumped to 11th based on those two wins. That is a little high and will correct itself as Canton's true rating is determined.

      Thanks again for picking that up.

      Comment


      • #4
        Re: Division III Rutter Rankings for 2013-2014

        Along those same lines, Middlebury is rated 54th...which seems odd
        UWS Ladyjackets

        NCHA League Champions: 2001, 2004, 2007, 2008
        NCHA Tournament Champs: 2008
        Frozen Four Participants: 2008

        Comment


        • #5
          Re: Division III Rutter Rankings for 2013-2014

          Originally posted by gojackets View Post
          Along those same lines, Middlebury is rated 54th...which seems odd
          OK, so there are THREE places in my code where team order matters, not two. I think I finally have it correct, as the top ten now matches the post below and SUNY Canton has a rating of around -.9.

          Comment


          • #6
            Re: Division III Rutter Rankings for 2013-2014

            Haha...you wouldn't want to **** of those Middlebury folks.
            UWS Ladyjackets

            NCHA League Champions: 2001, 2004, 2007, 2008
            NCHA Tournament Champs: 2008
            Frozen Four Participants: 2008

            Comment


            • #7
              Re: Division III Rutter Rankings for 2013-2014

              For games played through November 10, 2013

              No "Last Week" column since I had a little issue with SUNY Canton last week.

              Code:
                	Team 		Rating
              1 	Plattsburgh 	3.30	
              2 	Norwich 	2.09
              3 	Middlebury 	1.67
              4 	Bowdoin 	1.65
              5 	Wis-Superior 	1.63
              6 	Gustavus Adol. 	1.57
              7 	Elmira 	        1.45
              8 	Manhattanville 	1.09
              9 	Amherst 	1.08
              10 	Holy Cross 	1.07

              Comment


              • #8
                Re: Division III Rutter Rankings for 2013-2014

                For games played through November 17th, 2013

                Code:
                  	Team 		Rating	Last Week 	
                1 	Plattsburgh 	3.32	1
                2 	Norwich 	2.38	2
                3 	Middlebury 	1.98	3
                4 	Gustavus Adol. 	1.70	6
                5 	Wis-Superior 	1.69	5
                6 	Bowdoin 	1.65	4
                7 	Elmira 	        1.64	7
                8 	Amherst 	1.63	9
                9 	Wis-River Falls 1.23	NR
                10 	Holy Cross 	1.07	10

                Comment


                • #9
                  Re: Division III Rutter Rankings for 2013-2014

                  Originally posted by LakersFan View Post
                  For games played through November 17th, 2013

                  Code:
                    	Team 		Rating	Last Week 	
                  1 	Plattsburgh 	3.32	1
                  2 	Norwich 	2.38	2
                  3 	Middlebury 	1.98	3
                  4 	Gustavus Adol. 	1.70	6
                  5 	Wis-Superior 	1.69	5
                  6 	Bowdoin 	1.65	4
                  7 	Elmira 	        1.64	7
                  8 	Amherst 	1.63	9
                  9 	Wis-River Falls 1.23	NR
                  10 	Holy Cross 	1.07	10
                  I feel like I nitpick...how does River Falls lose two games to Stevens Point and move up in the rankings?
                  UWS Ladyjackets

                  NCHA League Champions: 2001, 2004, 2007, 2008
                  NCHA Tournament Champs: 2008
                  Frozen Four Participants: 2008

                  Comment


                  • #10
                    Re: Division III Rutter Rankings for 2013-2014

                    Originally posted by gojackets View Post
                    I feel like I nitpick...how does River Falls lose two games to Stevens Point and move up in the rankings?
                    I can think of at least two reasons: (This is without looking at the results, just based on how the math works)
                    1 - Teams just ahead of them did worse
                    2 - Their past opponents all had good weeks, improving their opponents strength of results.

                    Comment


                    • #11
                      Re: Division III Rutter Rankings for 2013-2014

                      Originally posted by OnMAA View Post
                      I can think of at least two reasons: (This is without looking at the results, just based on how the math works)
                      1 - Teams just ahead of them did worse
                      2 - Their past opponents all had good weeks, improving their opponents strength of results.
                      It would have to be the second reason, because River Falls would have showed up in the rankings last week if its Rutter rating had already been 1.23.
                      "... And lose, and start again at your beginnings
                      And never breathe a word about your loss;" -- Rudyard Kipling

                      Comment


                      • #12
                        Re: Division III Rutter Rankings for 2013-2014

                        Originally posted by gojackets View Post
                        I feel like I nitpick...how does River Falls lose two games to Stevens Point and move up in the rankings?
                        Because the code I have cobbled together doesn't like change. When the Wisconsin teams formed a new leagure, I missed the conference games. In order to make parsing team names into numbers easier, I use conference to shorten the list of games to sort through. I forgot to add in the new conference name, so it found the non-conference games but not the games played among themselves. Here are the updated results. All my fault.

                        For games played through Novemeber 24, 2013

                        Code:
                          	Team 		Rating	
                        1 	Plattsburgh 	3.35
                        2 	Middlebury 	2.58
                        3 	Norwich 	2.40
                        4 	Elmira 	        1.78
                        5 	Gustavus Adol.	1.54
                        6 	Wis-Stevens Pt. 1.23
                        6 	Wis-Superior 	1.23
                        8 	Saint Anselm 	1.19
                        9 	Amherst 	1.16
                        10 	Manhattanville 	1.14

                        Comment


                        • #13
                          Re: Division III Rutter Rankings for 2013-2014

                          Originally posted by LakersFan View Post
                          Because the code I have cobbled together doesn't like change. When the Wisconsin teams formed a new leagure, I missed the conference games. In order to make parsing team names into numbers easier, I use conference to shorten the list of games to sort through. I forgot to add in the new conference name, so it found the non-conference games but not the games played among themselves. Here are the updated results. All my fault.

                          For games played through Novemeber 24, 2013

                          Code:
                            	Team 		Rating	
                          1 	Plattsburgh 	3.35
                          2 	Middlebury 	2.58
                          3 	Norwich 	2.40
                          4 	Elmira 	        1.78
                          5 	Gustavus Adol.	1.54
                          6 	Wis-Stevens Pt. 1.23
                          6 	Wis-Superior 	1.23
                          8 	Saint Anselm 	1.19
                          9 	Amherst 	1.16
                          10 	Manhattanville 	1.14

                          Is there still an issue with St.Benedict's? They are still showing a .00000 RPI which can't be correct

                          Comment


                          • #14
                            Re: Division III Rutter Rankings for 2013-2014

                            For games played through December 8, 2013

                            These rankings inlcude the Saint Benedict fix, renamed over the summer from St. Benedict. Thanks for the heads-up claw.

                            Code:
                              	Team 	Rating 
                            1 	Plattsburgh 	2.83
                            2 	Norwich 	2.49
                            3 	Middlebury 	2.32
                            4 	Elmira 	        1.71
                            5 	Gustavus Adol.	1.60
                            6 	Wis-Stevens Pt. 1.43
                            7 	Amherst 	1.34
                            8 	Saint Anselm 	1.29
                            9 	Wis-River Falls 1.22
                            10 	Wis-Superior 	1.16

                            Comment


                            • #15
                              Re: Division III Rutter Rankings for 2013-2014

                              For games played through Janaury 5. 2014

                              Code:
                                	Team 	Rating 	
                              1 	Plattsburgh 	3.01
                              2 	Middlebury 	2.50
                              3 	Norwich 	2.32
                              4 	Elmira 	        1.58
                              5 	Wis-Stevens Pt. 1.41
                              6 	Amherst 	1.40
                              7 	Saint Anselm 	1.32
                              8 	Wis-River Falls 1.29
                              9 	Gustavus Adol.  1.27
                              10 	St. Scholastica 1.04

                              Comment

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