TonyTheTiger20
#SOAR
Re: 2015-2016 USCHO Posters Poll
Do you think BC is better than St. Cloud?
Easy questions, sure.
Do you think Minnesota is better than BC?
Tougher question, but one that still has an answer. You either think Minnesota would beat BC more often than not or you don't, whatever rationale you use. It's all about your opinion based on what you know and what you value in a team.
When you combine a dozen or so polls of public opinion you end up getting a good idea of how good everyone collectively thinks each team is.
Just because there are gray areas doesn't mean it's a worthless exercise. If it was easy to tell who was better than who we wouldn't be watching the sport.
Think of every game as having a "Game RPI." Take the average of all of those "Game RPIs" and it equals a team's total RPI.
If any Game RPI in a win is lower than a team's total RPI, then that means it would unfairly lower that average despite being a win, so it's thrown out.
For example, BC's RPI is .7252. Look at BC's "Game RPI" against Cornell, which is calculated as
[BC's Win% x 0.3] + [Cornell's Win% x .24] + [Cornell's Opponents' Win% x .46]
= [1.000 x 0.3] + [0.600* x 0.24] + [.5765 x 0.46]
= 0.3 + .144 + .2652
= .7092
*you have to remove the BC vs. Cornell games from this otherwise it's being double counted
That .7092 is lower than BC's RPI of .7252 --which means that it's dragging down BC's average. So the wins against Cornell are ignored.
If you look at North Dakota, as was in your example, North Dakota's RPI is .5574. If you look at all of the wins North Dakota has, none of them have a "Game RPI" of under .5574. The "worst" win is against Minnesota State, with a Game RPI of .5699. So while that's a "bad win," removing it would actually hurt North Dakota's RPI. So it's kept in there.
Lots of math, but hope that helps.
Do you think Minnesota is better than Northeastern?Given the lack of common opponents, the limited number of games each of us has seen and the general lack of comparables, how can anyone have more than a vague opinion on rankings?
Do you think BC is better than St. Cloud?
Easy questions, sure.
Do you think Minnesota is better than BC?
Tougher question, but one that still has an answer. You either think Minnesota would beat BC more often than not or you don't, whatever rationale you use. It's all about your opinion based on what you know and what you value in a team.
When you combine a dozen or so polls of public opinion you end up getting a good idea of how good everyone collectively thinks each team is.
Just because there are gray areas doesn't mean it's a worthless exercise. If it was easy to tell who was better than who we wouldn't be watching the sport.
That, I think, is all anyone sees in any poll, really.Not that it isn't a fun topic to argue about...
Same, I try and include some commentary in mine because I like seeing it in others'. Seeing what other people think of teams in their region also helps those of us far away who don't see those games....but I'd love to hear a few of you describe how you come to the conclusions you do. I am not agreeing or disagreeing with anyone just courious how you make your choices.
The question is how weak those teams are relative to how strong the teams are that beat them.EDIT: on the subject of ranking, I noticed PWR asterisks some teams with the note "Team's RPI has been adjusted to remove negative effect from defeating weak opponent." yet some teams (e.g. UND and NU) are not so noted. I assume both have beaten weak teams so what makes the difference.
Think of every game as having a "Game RPI." Take the average of all of those "Game RPIs" and it equals a team's total RPI.
If any Game RPI in a win is lower than a team's total RPI, then that means it would unfairly lower that average despite being a win, so it's thrown out.
For example, BC's RPI is .7252. Look at BC's "Game RPI" against Cornell, which is calculated as
[BC's Win% x 0.3] + [Cornell's Win% x .24] + [Cornell's Opponents' Win% x .46]
= [1.000 x 0.3] + [0.600* x 0.24] + [.5765 x 0.46]
= 0.3 + .144 + .2652
= .7092
*you have to remove the BC vs. Cornell games from this otherwise it's being double counted
That .7092 is lower than BC's RPI of .7252 --which means that it's dragging down BC's average. So the wins against Cornell are ignored.
If you look at North Dakota, as was in your example, North Dakota's RPI is .5574. If you look at all of the wins North Dakota has, none of them have a "Game RPI" of under .5574. The "worst" win is against Minnesota State, with a Game RPI of .5699. So while that's a "bad win," removing it would actually hurt North Dakota's RPI. So it's kept in there.
Lots of math, but hope that helps.
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