[net.sport.hockey] Computerized NHL Rankings

jeff@dciem.UUCP (Jeff Richardson) (12/07/84)

Have you ever looked at hockey standings and said, "sure team X has a
great record, but they haven't beaten anybody good.  If they had played
the same teams that team Y has played, they'd have a lot more losses," or
something like that?  Well, I've written a program that attempts to show
the true meaning of a team's record by taking into consideration how good
its opponents have been.

Those of you who read net.sport.football have already seen what this program
can do.  For those who don't, the program gives good points for each win and
bad points for each loss (a tie counts as half a win and half a loss).
The number of good or bad points given depends on the opponent:  more
good points are given for a win against a good team, and more bad points
for a loss against a bad team.  Then, a rating is calculated from the
difference between the team's good and bad points and the number of games
they have played.  This rating is used because if a team has played average
competition, their rating will be the same as their win percentage.
Mail me if you want more details on the algorithm.

This is what it comes up for the NHL, after games of Dec. 5.  Unless somebody
objects, I'll post the ratings about once a month.

RANK TEAM       (Div.)    GP   W   L   T    PCT  GOOD   BAD RATING
 1  EDMONTON    (Sm.)     25  19   3   3  0.820  19.8   3.5  0.826
 2  PHILADELPHIA (Pat.)   24  16   4   4  0.750  17.3   6.0  0.737
 3  MONTREAL     (Ad.)    25  15   6   4  0.680  16.7   9.3  0.648
 4  NY ISLANDERS (Pat.)   25  15   9   1  0.620  14.0   8.4  0.612
 5  CALGARY     (Sm.)     26  15   9   2  0.615  14.3   8.6  0.611
 6  WASHINGTON   (Pat.)   25  12   8   5  0.580  13.6   8.8  0.596
 7  WINNIPEG    (Sm.)     24  12   9   3  0.563  11.7   8.1  0.576
 8  ST. LOUIS   (Nor.)    24  12  10   2  0.542  11.1   8.5  0.554
 9  BOSTON       (Ad.)    25  11  11   3  0.500  12.0   9.5  0.550
10  LOS ANGELES (Sm.)     26  12   9   5  0.558  11.8  10.1  0.533
11  QUEBEC       (Ad.)    25  12  11   2  0.520  11.5  10.6  0.517
12  CHICAGO     (Nor.)    26  12  11   3  0.519  12.1  11.8  0.506
13  BUFFALO      (Ad.)    25   9  11   5  0.460  11.7  12.6  0.481
14  NY RANGERS   (Pat.)   24   9  12   3  0.438   9.9  13.1  0.433
15  HARTFORD     (Ad.)    25   9  13   3  0.420   9.2  12.8  0.427
16  MINNESOTA   (Nor.)    25   8  11   6  0.440   7.4  13.2  0.385
17  PITTSBURGH   (Pat.)   24   7  14   3  0.354   8.8  14.5  0.381
18  NEW JERSEY   (Pat.)   23   7  14   2  0.348   7.2  13.6  0.361
19  DETROIT     (Nor.)    25   8  14   3  0.380   7.6  15.6  0.341
20  VANCOUVER   (Sm.)     27   4  21   2  0.185   4.1  18.7  0.230
21  TORONTO     (Nor.)    26   4  18   4  0.231   5.4  21.3  0.194
-- 
Jeff Richardson, DCIEM, Toronto  (416) 635-2073
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