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How are RPI adjustments for beating bad teams decided?

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  • How are RPI adjustments for beating bad teams decided?

    I can't really figure out which win (or wins) are being adjusted in Minnesota-Duluth's RPI ranking, Lake Superior, Northern Michigan, or Clarkson seem to be the only possibles - but that's not really my question, and I don't think it matters. My question is why Wisconsin, CC, UNO, and Bemidji, did not get their RPI adjusted after beating Alabama-Huntsville? Huntsville has a lower pairwise, RPI, and strength of schedule than Superior, N. Michigan, and Clarkson, so why haven't these teams RPI been adjusted and UMD's has?

  • #2
    Re: How are RPI adjustments for beating bad teams decided?

    Originally posted by stedga View Post
    I can't really figure out which win (or wins) are being adjusted in Minnesota-Duluth's RPI ranking, Lake Superior, Northern Michigan, or Clarkson seem to be the only possibles - but that's not really my question, and I don't think it matters. My question is why Wisconsin, CC, UNO, and Bemidji, did not get their RPI adjusted after beating Alabama-Huntsville? Huntsville has a lower pairwise, RPI, and strength of schedule than Superior, N. Michigan, and Clarkson, so why haven't these teams RPI been adjusted and UMD's has?
    If beating the "bad team" lowers your RPI, then the game does not count towards your RPI. The premise is that, if you win a game, your RPI shall NOT go down as a result of that game. It goes on a team-by-team basis because each team will have a different RPI calculation primarily based upon who their out-of-conference opponents are.

    The best suggestion I have is to go to the SiouxSports website and play with their What If calculator. You would also be able to do it with the TBRW calculator.

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    • #3
      Re: How are RPI adjustments for beating bad teams decided?

      Originally posted by stedga View Post
      I can't really figure out which win (or wins) are being adjusted in Minnesota-Duluth's RPI ranking, Lake Superior, Northern Michigan, or Clarkson seem to be the only possibles - but that's not really my question, and I don't think it matters. My question is why Wisconsin, CC, UNO, and Bemidji, did not get their RPI adjusted after beating Alabama-Huntsville? Huntsville has a lower pairwise, RPI, and strength of schedule than Superior, N. Michigan, and Clarkson, so why haven't these teams RPI been adjusted and UMD's has?
      How did you miss MICHIGAN TECH?

      UW and RPI have both had their RPIs adjusted for their games against Huntsville.
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      • #4
        Re: How are RPI adjustments for beating bad teams decided?

        Originally posted by Runninwiththedogs View Post
        How did you miss MICHIGAN TECH?

        UW and RPI have both had their RPIs adjusted for their games against Huntsville.
        Because Michigan Tech is in the WCHA, and therefore can't be rated lower than 12th?
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        • #5
          Re: How are RPI adjustments for beating bad teams decided?

          Originally posted by FlagDUDE08 View Post
          If beating the "bad team" lowers your RPI, then the game does not count towards your RPI. The premise is that, if you win a game, your RPI shall NOT go down as a result of that game. It goes on a team-by-team basis because each team will have a different RPI calculation primarily based upon who their out-of-conference opponents are.

          The best suggestion I have is to go to the SiouxSports website and play with their What If calculator. You would also be able to do it with the TBRW calculator.
          And I'd recommend not going to SiouxSports. Ever.
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          • #6
            Re: How are RPI adjustments for beating bad teams decided?

            my apologies for neglecting the blight of the wcha, but Tech has also lost to every team in the WCHA so if Tech is the culprit my point still stands, why have wisconsin and duluth gotten their rpi adjusted while UNO and CC have not? I tried to look up specifically how much they dropped after beating hunstville, and while I'm fairly confident I remember it happening I cannot find any week by week listing of how the RPI has changed over the course of the season so I couldn't confirm that it happened. maybe duluth's dropped and UNO and CC didn't becuase duluth is ranked #2 and UNO and CC are at the back end of the top 20? but like I said, I could've sworn CC's strength of schedule went way down after beating huntsville and their RPI dropped as a result

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            • #7
              Re: How are RPI adjustments for beating bad teams decided?

              Originally posted by stedga View Post
              my apologies for neglecting the blight of the wcha, but Tech has also lost to every team in the WCHA so if Tech is the culprit my point still stands, why have wisconsin and duluth gotten their rpi adjusted while UNO and CC have not? I tried to look up specifically how much they dropped after beating hunstville, and while I'm fairly confident I remember it happening I cannot find any week by week listing of how the RPI has changed over the course of the season so I couldn't confirm that it happened. maybe duluth's dropped and UNO and CC didn't becuase duluth is ranked #2 and UNO and CC are at the back end of the top 20? but like I said, I could've sworn CC's strength of schedule went way down after beating huntsville and their RPI dropped as a result
              Your RPI CANNOT drop as a result of beating a team. Plain and simple. If the games with UNO and CC counted towards their RPI, it's because their RPI went up (or stayed the same) as a result of the win. In UNO's case, they did lose to UAH, so their RPI took a hit because of that. It's likely the win caused it to go up.

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              • #8
                Re: How are RPI adjustments for beating bad teams decided?

                They have not lost to MSU.
                Originally posted by stedga View Post
                my apologies for neglecting the blight of the wcha, but Tech has also lost to every team in the WCHA so if Tech is the culprit my point still stands, why have wisconsin and duluth gotten their rpi adjusted while UNO and CC have not? I tried to look up specifically how much they dropped after beating hunstville, and while I'm fairly confident I remember it happening I cannot find any week by week listing of how the RPI has changed over the course of the season so I couldn't confirm that it happened. maybe duluth's dropped and UNO and CC didn't becuase duluth is ranked #2 and UNO and CC are at the back end of the top 20? but like I said, I could've sworn CC's strength of schedule went way down after beating huntsville and their RPI dropped as a result

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                • #9
                  Re: How are RPI adjustments for beating bad teams decided?

                  They haven't lost to North Dakota yet either.
                  That community is already in the process of dissolution where each man begins to eye his neighbor as a possible enemy, where non-conformity with the accepted creed, political as well as religious, is a mark of disaffection; where denunciation, without specification or backing, takes the place of evidence; where orthodoxy chokes freedom of dissent; where faith in the eventual supremacy of reason has become so timid that we dare not enter our convictions in the open lists, to win or lose.

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                  • #10
                    Re: How are RPI adjustments for beating bad teams decided?

                    Originally posted by stedga View Post
                    ... why have wisconsin and duluth gotten their rpi adjusted while UNO and CC have not? I tried to look up specifically how much they dropped after beating hunstville, and while I'm fairly confident I remember it happening I cannot find any week by week listing of how the RPI has changed over the course of the season so I couldn't confirm that it happened.
                    It also matters what the separation in RPI is between the winning team and the losing team. Notre Dame may not have an RPI score drop by beating Bowling Green, but since Minnesota Duluth or Yale have a higher RPI than Notre Dame (and thus an even greater margin between their respective RPI scores and Bowling Green's) theirs may drop if the result is counted. That's why some teams have games against some opponents not counted in their RPI while other schools playing those same teams do.

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                    • #11
                      Re: How are RPI adjustments for beating bad teams decided?

                      Irishhockeyfan is right. The better your record, the more likely a game is not counted if you win. And games that aren't counted early in the season might be counted by the end. Yale at one point had five games not counted; they are now down to two. What you do know is that if a team's win over a particular opponent doesn't count and if another team with a higher RPI beat that opponent as well, then that game won't count for them either. That's about all you can tell.

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                      • #12
                        Re: How are RPI adjustments for beating bad teams decided?

                        Originally posted by goblue78 View Post
                        Irishhockeyfan is right. The better your record, the more likely a game is not counted if you win. And games that aren't counted early in the season might be counted by the end. Yale at one point had five games not counted; they are now down to two. What you do know is that if a team's win over a particular opponent doesn't count and if another team with a higher RPI beat that opponent as well, then that game won't count for them either. That's about all you can tell.
                        Also RPI's wins over UAH originally didn't count. Then when RPI lost a couple of games they counted. Now they don't count again. That makes sense to me.
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                        • #13
                          Algorithmically, IIRC, it's either a one-off calculation of the differences in RPIs. Some part in my head says there is some game value function that is easier to compute.

                          That being said, the computation involves each game assuming the rest count. Once you flag those, remove them. These procedures are not performed iteratively in any fashion.
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