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Post by Zigmister on Dec 27, 2013 3:28:29 GMT -6
W/L Percentage (WLP): Win over Total Matches Played. [W / Total Matches]
NHL System: (unofficial: The Champ System) Overtime losses are rewarded. [W=2, L=0, OTL=1]. Tie breakers: Better WLP, total matches played, date of league entry (which matches the team ID in numerical order).
The Lieblich System: Strength of schedule based on NCAA Basketball RPI. Formula: [(Team's WLP * .25) + (OWLP * .5) + (OOWLP *.25)]
The Perrone System: Quality win component similar to the BCS. Basic formula: [(Wins+OT-Ls)-(Losses)] / Total Games Played
Full Formula: [ { (W, OWLP = 1.0 WLP) = 4 points (W, OWLP = .75-.999 WLP) = 3.5 points (W, OWLP = .5-.749) = 3.25 points (W, OWLP = .25-.499) = 3 points (W, OWLP = .001-.249) = 2.75 points (W, OWLP = 0 = 2.5) points + (OTL, OWLP = 1.0 WLP) = 1.05 points (OTL, OWLP = .75-.999)= .975 points (OTL, OWLP = .5-.749) = .95 points (OTL, OWLP = .25-.499) = .925 points (OTL, OWLP = .001-.249) = .9 points (OTL, OWLP = 0) = .875 points } - { (L, OWLP = 1) = -1.25 points (L, OWLP = .75-.999) = -1.375 points (L, OWLP = .5-.749) = -1.5 points (L, OWLP = .25-.499) = -1.625 points (L, OWLP = .001-.249) = -1.75 points (L, OWLP = 0) = -2 points } ] / Total Games Played
Gonzalez System: A Ratings Exchange system modeled after the IRB. Formula: RatingsChange = .1 * (RatingsGap) + GameResultIndex (W=1, L=-1)
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Post by Zigmister on Jan 15, 2014 10:32:02 GMT -6
Question: Why is it the Ratings Gap and GRI multiplied by .1? Answer from Matt Gonzalez: It's been a while since I've looked at it, but let me see if I can remember what I did exactly, as I can't find my calculations at the moment. The formula listed should be the one I used, but if there is a miscalculation, then it would be because I just typed it up incorrectly with the GRI in the same set of parentheses as the ratings gap. If you are asking why I used a factor of .1 specifically, it's because I wanted to match this graph that the IRB uses: www.irb.com/mm/Photo/Static/0/ranking_wales-win_4495.gif The formula represents the upper and lower lines from the graph, with the GRI shifting the y-intercept up for a win and down for a loss. Hopefully that explains it, I know it's pretty confusing. It took me a bit to decipher their explanation (http://www.irb.com/rankings/explain/index.html/#eg).
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Post by Zigmister on Apr 6, 2014 19:47:10 GMT -6
If anyone wants to see the full Gonzalez rankings, we have those completed and calculated in a Google Spreadsheet. 1 57.864 GVSU 2 54.210 SVSU 3 50.024 Kent 4 48.694 JMU 5 47.100 UK 6 46.392 MSU 7 45.410 CMU 8 45.232 OSU 9 41.955 UWP 10 41.946 WKU 11 41.246 SHU 12 40.532 UMD 13 40.525 TU 14 38.196 UNT 15 38.091 WIU 16 37.947 LCC 17 37.742 DU 18 37.733 PSU 19 37.341 BGSU 20 37.250 RIT 21 36.896 NSU 22 36.844 SAU 23 36.217 K-State 24 35.933 MAD 25 34.134 UNL 26 34.106 EMU 27 32.996 DePaul 28 32.589 Miami 29 32.149 VCU 30 30.506 UofL
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