worst completion percentage nfl history in one season by qb min 300 pass attempts

Cotton Davidson has the lowest completion percentage by a quarterback in a season when throwing 300+ pass attempts, at 37.1 percent in 1962.

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  • Data note: Completion Percentage, Passing Attempts: player season data complete from 1932
NAMEPCTATTSEASONTMGPCMPYDSAVGYDS/GTDINTRTGTD%INT%SCKSCKY
1Cotton Davidson
C. Davidson
37.1
321
1962
TOT
14
119
1,977
6.2
141.2
7
23
36.1
2.2
7.2
2Steve Tensi
S. Tensi
40.3
325
1967
14
131
1,915
5.9
136.8
16
17
54.8
4.9
5.2
3Babe Parilli
B. Parilli
40.6
426
1965
14
173
2,597
6.1
185.5
18
26
50.0
4.2
6.1
4Rusty Hilger
R. Hilger
41.2
306
1988
11
126
1,558
5.1
141.6
7
12
48.9
2.3
3.9
31
251
5Doug Williams
D. Williams
41.8
397
1979
16
166
2,448
6.2
153.0
18
24
52.5
4.5
6.0
7
57
6George Blanda
G. Blanda
42.1
442
1965
14
186
2,542
5.8
181.6
20
30
47.9
4.5
6.8
7Jack Kemp
J. Kemp
42.7
389
1966
14
166
2,451
6.3
175.1
11
16
56.2
2.8
4.1
8Jack Kemp
J. Kemp
43.6
369
1967
14
161
2,503
6.8
178.8
14
26
50.0
3.8
7.0
9Jim Hart
J. Hart
44.3
316
1968
13
140
2,059
6.5
158.4
15
18
58.2
4.7
5.7
10Vince Evans
V. Evans
44.7
436
1981
16
195
2,354
5.4
147.1
11
20
51.1
2.5
4.6
23
173
11Al Dorow
A. Dorow
45.0
438
1961
14
197
2,651
6.1
189.4
19
30
50.7
4.3
6.8
12Bobby Layne
B. Layne
45.2
336
1950
12
152
2,323
6.9
193.6
16
18
62.1
4.8
5.4
13Jack Kemp
J. Kemp
45.3
364
1961
14
165
2,686
7.4
191.9
15
22
59.2
4.1
6.0
14Steve DeBerg
S. DeBerg
45.4
302
1978
12
137
1,570
5.2
130.8
8
22
40.0
2.6
7.3
17
156
15Babe Parilli
B. Parilli
45.4
337
1963
14
153
2,345
7.0
167.5
13
24
52.1
3.9
7.1
16Dick Wood
D. Wood
45.5
352
1963
12
160
2,204
6.3
183.7
18
19
60.6
5.1
5.4
17Cotton Davidson
C. Davidson
45.8
330
1961
14
151
2,445
7.4
174.6
17
23
59.2
5.2
7.0
18Jack Kemp
J. Kemp
45.8
391
1965
14
179
2,368
6.1
169.1
10
18
54.8
2.6
4.6
19Bobby Layne
B. Layne
45.8
332
1951
12
152
2,403
7.2
200.3
26
23
67.6
7.8
6.9
20Jim Hart
J. Hart
45.8
373
1970
14
171
2,575
6.9
183.9
14
18
61.5
3.8
4.8
26
216
21Paul Christman
P. Christman
45.8
301
1947
12
138
2,191
7.3
182.6
17
22
59.0
5.6
7.3
22Norm Snead
N. Snead
45.9
375
1961
14
172
2,337
6.2
166.9
11
22
51.6
2.9
5.9
23Tobin Rote
T. Rote
45.9
342
1955
12
157
1,977
5.8
164.8
17
19
57.8
5.0
5.6
24Don Meredith
D. Meredith
46.2
305
1965
14
141
2,415
7.9
172.5
22
13
79.9
7.2
4.3
25Ed Brown
E. Brown
46.4
362
1963
14
168
2,982
8.2
213.0
21
20
71.4
5.8
5.5

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