1975 saw SEC champion Alabama finish atop the base RPR following a victory in the Sugar Bowl. The Crimson Tide held the best Score Ratio and tied for 3rd-best Win %. Consensus poll champion Oklahoma and Ohio State finished within the CCT cutoff: while Buckeyes were very close to warranting consideration, the Sooners’ body of work I believed warranted a co-champion designation.

Note: I rated 135 teams instead of 137, which most rating systems rate for the 1975 season. Based on NCAA Football Record books, the following schools weren’t considered “major college”/FBS-equivalent for 1975 and were not rated: Akron and Chattanooga.

Co-champion Threshold: 0.0279; CCT Rating Cutoff: 0.6846

Rank	Team	Adj. Rating
T-1	Alabama	0.7082 (0.7125)
T-1	Oklahoma (AP/C)	0.7082 (0.7039)
3	Ohio State	0.6993
4	Arkansas State	0.6980
5	Arizona State	0.6804
6	Texas	0.6686
7	Nebraska	0.6669
8	Arkansas	0.6613
9	Miami, OH	0.6612
10	Penn State	0.6538
11	Rutgers	0.6474
12	Michigan	0.6409
13	Texas A&M	0.6372
14	San Jose State	0.6367
15	Pittsburgh	0.6290
16	Ball State	0.6256
17	West Virginia	0.6256
18	Florida	0.6238
19	Georgia	0.6204
20	Arizona	0.6160
21	Colorado	0.6133
22	Oklahoma State	0.6131
23	Maryland	0.6122
24	Louisiana Tech	0.6083
25	UCLA	0.6071
26	California	0.6050
27	San Diego State	0.6025
28	Central Michigan	0.6017
29	Southern Miss.	0.6014
30	Bowling Green	0.5932
31	Long Beach St.	0.5927
32	Yale	0.5924
33	Notre Dame	0.5865
34	So. California	0.5861
35	Harvard	0.5814
36	Michigan State	0.5813
37	Missouri	0.5808
38	Appalachian St.	0.5742
39	NC State	0.5660
40	Tennessee	0.5620
41	Kansas	0.5614
42	East Carolina	0.5612
43	Mississippi	0.5596
44	Navy	0.5587
45	Temple	0.5583
46	Stanford	0.5567
47	Brown	0.5545
48	Boston College	0.5510
49	Cincinnati	0.5500
50	Washington	0.5476
51	Mississippi State	0.5461
52	Tulsa	0.5452
53	South Carolina	0.5389
54	Georgia Tech	0.5369
55	Syracuse	0.5361
56	Texas Tech	0.5353
57	North Texas	0.5337
58	Memphis	0.5335
59	Virginia Tech	0.5289
60	McNeese State	0.5272
61	Hawaii	0.5250
62	Dartmouth	0.5241
63	New Mexico	0.5230
64	LA-Lafayette	0.5214
65	Brigham Young	0.5157
66	Ohio	0.5145
67	The Citadel	0.5135
68	Richmond	0.5097
69	Minnesota	0.5087
70	Princeton	0.5037
71	Pacific	0.4999
72	Colorado State	0.4984
73	Colgate	0.4981
74	Vanderbilt	0.4973
75	Illinois	0.4969
76	Utah State	0.4949
77	Dayton	0.4931
78	Toledo	0.4869
79	LSU	0.4849
80	E. Michigan	0.4845
81	Furman	0.4831
82	Auburn	0.4757
83	Indiana State	0.4716
84	Baylor	0.4715
85	Duke	0.4698
86	Texas-Arlington	0.4601
87	Purdue	0.4596
88	Iowa State	0.4574
89	SMU	0.4534
90	West Texas A&M	0.4525
91	Wisconsin	0.4507
92	Kent State	0.4459
93	Kentucky	0.4459
94	Pennsylvania	0.4442
95	Miami, FL	0.4420
96	Fresno State	0.4277
97	Iowa	0.4271
98	North Carolina	0.4269
99	Washington St.	0.4268
100	Tulane	0.4265
101	Oregon	0.4253
102	Kansas State	0.4226
103	New Mexico St.	0.4219
104	LA-Monroe	0.4203
105	Florida State	0.4180
106	Wake Forest	0.4135
107	Villanova	0.4082
108	Columbia	0.4061
109	Air Force	0.4057
110	VMI	0.4051
111	Wyoming	0.4047
112	Rice	0.4025
113	Northern Illinois	0.4005
114	Northwestern	0.3916
115	Indiana	0.3845
116	Cal St – Fullerton	0.3838
117	Clemson	0.3816
118	TCU	0.3806
119	Army	0.3750
120	Drake	0.3749
121	Cornell	0.3719
122	Houston	0.3706
123	William & Mary	0.3678
124	Marshall	0.3646
125	Oregon State	0.3634
126	Wichita State	0.3620
127	Illinois State	0.3605
128	UTEP	0.3544
129	Southern Illinois	0.3451
130	Virginia	0.3408
131	Lamar	0.3373
132	W. Michigan	0.3364
133	Holy Cross	0.3341
134	Utah	0.3282
135	Louisville	0.3220

Best Win Percentage: Arizona State/Arkansas State
Best SOS: Missouri
Best Score Ratio: Alabama