lowest passer rating in a season minimum 300 attempts

Cotton Davidson has the worst passer rating with 300+ passing attempts in a season, with a 36.1 rating in 1962.

Interpreted as:
lowest passer rating by a player in a season minimum 300 passing attempts
NAMERTGATTSEASONTMGPCMPPCTYDSAVGYDS/GTDINTTD%INT%SCKSCKY
1Cotton Davidson
C. Davidson
36.1
321
1962
TOT
14
119
37.1
1,977
6.2
141.2
7
23
2.2
7.2
2Steve DeBerg
S. DeBerg
40.0
302
1978
12
137
45.4
1,570
5.2
130.8
8
22
2.6
7.3
17
156
3Archie Manning
A. Manning
44.3
338
1975
13
159
47.0
1,683
5.0
129.5
7
20
2.1
5.9
49
390
4Charlie Conerly
C. Conerly
44.9
303
1953
12
143
47.2
1,711
5.6
142.6
13
25
4.3
8.3
5Jim Plunkett
J. Plunkett
45.7
355
1972
14
169
47.6
2,196
6.2
156.9
8
25
2.3
7.0
39
385
6Mark Malone
M. Malone
46.7
336
1987
12
156
46.4
1,896
5.6
158.0
6
19
1.8
5.7
18
151
7Frank Tripucka
F. Tripucka
47.3
344
1961
14
167
48.5
1,690
4.9
120.7
10
21
2.9
6.1
8Mike Phipps
M. Phipps
47.5
313
1975
14
162
51.8
1,749
5.6
124.9
4
19
1.3
6.1
28
261
9Jim Finks
J. Finks
47.7
344
1955
12
165
48.0
2,270
6.6
189.2
10
26
2.9
7.6
10George Blanda
G. Blanda
47.9
442
1965
14
186
42.1
2,542
5.8
181.6
20
30
4.5
6.8
11Craig Whelihan
C. Whelihan
48.0
320
1998
10
149
46.6
1,803
5.6
180.3
8
19
2.5
5.9
15
111
12Vinny Testaverde
V. Testaverde
48.8
466
1988
15
222
47.6
3,240
7.0
216.0
13
35
2.8
7.5
33
292
13Rusty Hilger
R. Hilger
48.9
306
1988
11
126
41.2
1,558
5.1
141.6
7
12
2.3
3.9
31
251
14Rudy Bukich
R. Bukich
49.3
309
1966
14
147
47.6
1,858
6.0
132.7
10
21
3.2
6.8
15Jim Zorn
J. Zorn
49.5
439
1976
14
208
47.4
2,571
5.9
183.6
12
27
2.7
6.2
25
196
16Babe Parilli
B. Parilli
50.0
426
1965
14
173
40.6
2,597
6.1
185.5
18
26
4.2
6.1
17Jack Kemp
J. Kemp
50.0
369
1967
14
161
43.6
2,503
6.8
178.8
14
26
3.8
7.0
18Al Dorow
A. Dorow
50.7
438
1961
14
197
45.0
2,651
6.1
189.4
19
30
4.3
6.8
19Jake Plummer
J. Plummer
50.8
381
1999
12
201
52.8
2,111
5.5
175.9
9
24
2.4
6.3
27
152
20Joe Namath
J. Namath
51.0
326
1975
14
157
48.2
2,286
7.0
163.3
15
28
4.6
8.6
27
253
21Vince Evans
V. Evans
51.1
436
1981
16
195
44.7
2,354
5.4
147.1
11
20
2.5
4.6
23
173
22Milt Plum
M. Plum
51.2
308
1965
14
143
46.4
1,710
5.6
122.1
12
19
3.9
6.2
23George Blanda
G. Blanda
51.3
418
1962
14
197
47.1
2,810
6.7
200.7
27
42
6.5
10.0
24Norm Snead
N. Snead
51.6
375
1961
14
172
45.9
2,337
6.2
166.9
11
22
2.9
5.9
25Babe Parilli
B. Parilli
52.1
337
1963
14
153
45.4
2,345
7.0
167.5
13
24
3.9
7.1
StatMuse has season-level data for passer rating and passing attempts going back to the 1932 season.

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14
3
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12
5
0
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3
14
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AFC NorthWLTPCT
10
7
0
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8
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12
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AFC SouthWLTPCT
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8
9
0
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3
14
0
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AFC WestWLTPCT
14
3
0
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11
6
0
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6
11
0
.353
3
14
0
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NFC EastWLTPCT
11
6
0
.647
7
9
1
.441
5
12
0
.294
4
13
0
.235
NFC NorthWLTPCT
Bears Bears - y
11
6
0
.647
9
7
1
.559
9
8
0
.529
Lions Lions - e
9
8
0
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NFC SouthWLTPCT
8
9
0
.471
8
9
0
.471
8
9
0
.471
6
11
0
.353
NFC WestWLTPCT
14
3
0
.824
Rams Rams - w
12
5
0
.706
49ers 49ers - w
12
5
0
.706
3
14
0
.176