2009-10 Season: Ratings Percentage Index (RPI) for CIS teams as of March 21, 2010

While attempting to provide this report, I have discovered the formula is both complicated and not documented consistently. After reviewing a few definitions, this calculation of RPI is based on the description found on Wikipedia - Ratings Percentage Index. I'd be happy to discuss this formula with others and improve as needed.

Pos	Team	League	W	L	PF	PA	Pct	Home	Away	Neutral	WP	OWP	OOWP	RPI
1	UBC	CanWest Pacific	25	3	84.5	69.6	0.893	16-1	7-1	2-1	0.877	0.558	0.514	0.627
2	Carleton	OUA East	30	3	85.5	64.1	0.909	17-0	10-2	3-1	0.925	0.498	0.513	0.609
3	Saskatchewan	CanWest Prairie	26	7	89.5	75.7	0.788	14-2	6-5	6-0	0.797	0.534	0.510	0.594
4	Windsor	OUA West	22	9	80.7	73.8	0.710	11-3	10-4	1-2	0.715	0.574	0.510	0.593
5	Cape Breton	AUS	30	4	92.5	74.3	0.882	14-1	12-1	4-2	0.880	0.486	0.497	0.587
6	StFX	AUS	27	6	82.4	71.7	0.818	11-1	12-4	4-1	0.851	0.499	0.498	0.587
7	Calgary	CanWest Prairie	22	7	82.1	71.3	0.759	10-2	8-3	4-2	0.763	0.532	0.505	0.583
8	Ottawa	OUA East	25	10	82.1	71.2	0.714	11-5	11-3	3-2	0.698	0.543	0.497	0.570
9	Simon Fraser	CanWest Pacific	18	8	77.5	74.6	0.692	10-4	8-3	0-1	0.672	0.546	0.514	0.569
10	Lakehead	OUA West	23	9	73.2	70.2	0.719	11-4	10-3	2-2	0.706	0.528	0.507	0.567
11	McMaster	OUA West	21	9	79.9	69.2	0.700	10-5	9-4	2-0	0.687	0.517	0.504	0.556
12	Fraser Valley	CanWest Pacific	13	12	76.4	77.4	0.520	7-3	5-8	1-1	0.550	0.555	0.511	0.543
13	Saint Marys	AUS	21	13	78.7	74.8	0.618	7-5	10-7	4-1	0.645	0.484	0.490	0.526
14	Dalhousie	AUS	21	12	72.2	67.0	0.636	9-6	9-5	3-1	0.629	0.471	0.499	0.517
15	Toronto	OUA East	18	12	75.2	70.0	0.600	7-6	7-6	4-0	0.600	0.479	0.504	0.515
16	Regina	CanWest Prairie	13	13	79.0	80.7	0.500	5-4	6-9	2-0	0.549	0.500	0.510	0.515
17	Trinity Western	CanWest Pacific	10	9	78.0	75.5	0.526	6-3	4-6	0-0	0.541	0.500	0.515	0.514
18	Alberta	CanWest Prairie	12	16	69.5	74.6	0.429	4-6	8-8	0-2	0.472	0.536	0.507	0.513
19	Waterloo	OUA West	15	18	68.3	68.0	0.455	10-3	4-14	1-1	0.481	0.529	0.502	0.510
20	Western	OUA West	13	14	76.4	76.4	0.481	9-3	4-9	0-2	0.487	0.520	0.506	0.508
21	UQAM	QSSF	18	14	76.1	72.9	0.562	13-2	5-7	0-5	0.552	0.479	0.498	0.502
22	Queens	OUA East	16	12	71.0	71.1	0.571	11-5	5-7	0-0	0.548	0.479	0.500	0.502
23	Lethbridge	CanWest Prairie	10	12	75.2	74.2	0.455	6-4	4-8	0-0	0.469	0.505	0.513	0.498
24	Victoria	CanWest Pacific	10	11	70.6	71.4	0.476	8-5	2-6	0-0	0.418	0.530	0.510	0.497
25	Laval	QSSF	15	15	76.7	74.2	0.500	8-4	6-9	1-2	0.522	0.478	0.503	0.495
26	Wilfrid Laurier	OUA West	16	18	72.6	71.5	0.471	9-6	5-9	2-3	0.462	0.492	0.495	0.485
27	Brandon	CanWest Prairie	10	16	76.4	81.0	0.385	4-7	4-9	2-0	0.397	0.506	0.505	0.478
28	Guelph	OUA West	8	17	71.4	72.8	0.320	3-10	5-7	0-0	0.326	0.536	0.504	0.475
29	Ryerson	OUA East	10	17	71.8	76.6	0.370	6-6	4-11	0-0	0.380	0.492	0.512	0.469
30	Bishops	QSSF	10	17	69.3	78.5	0.370	6-4	3-9	1-4	0.370	0.501	0.487	0.465
31	Brock	OUA West	11	19	69.7	74.7	0.367	7-8	3-8	1-3	0.331	0.509	0.496	0.461
32	Acadia	AUS	14	18	77.4	79.9	0.438	6-5	4-7	4-6	0.434	0.456	0.494	0.460
33	York	OUA East	7	21	70.8	78.8	0.250	4-7	3-14	0-0	0.266	0.520	0.497	0.451
34	McGill	QSSF	12	17	73.1	74.5	0.414	7-7	3-7	2-3	0.380	0.462	0.497	0.450
35	Laurentian	OUA East	11	21	75.5	81.0	0.344	5-6	2-14	4-1	0.355	0.447	0.494	0.436
36	Thompson Rivers	CanWest Pacific	4	20	76.2	85.0	0.167	1-10	3-7	0-3	0.185	0.508	0.507	0.427
37	UNB	AUS	6	20	74.1	83.4	0.231	2-9	3-10	1-1	0.246	0.471	0.487	0.419
38	Manitoba	CanWest Prairie	7	20	76.1	86.6	0.259	3-7	3-10	1-3	0.271	0.438	0.501	0.412
39	UPEI	AUS	4	25	76.3	86.9	0.138	3-8	1-12	0-5	0.120	0.511	0.486	0.407
40	Concordia	QSSF	10	16	69.8	74.3	0.385	5-6	3-8	2-2	0.377	0.386	0.475	0.406
41	Memorial	AUS	2	21	69.6	87.8	0.087	2-8	0-11	0-2	0.057	0.532	0.483	0.401
42	RMC	OUA East	0	31	57.7	98.3	0.000	0-15	0-13	0-3	0.000	0.485	0.495	0.366
43	Winnipeg	CanWest Prairie	2	26	66.7	82.0	0.071	1-15	0-11	1-0	0.055	0.426	0.504	0.353