worst completion percentage nfl history qb in one season since 1970

Since 1970, Gary Marangi has the worst completion percentage by a quarterback in a season, at 35.3 percent in 1976.

Interpreted as:
worst completion percentage with a minimum of 14 passing attempts per team game NFL history qb in one season since 1970
NAMEPCTSEASONTMGPCMPATTYDSAVGYDS/GTDINTRTGTD%INT%SCKSCKY
1Gary Marangi
G. Marangi
35.3
1976
11
82
232
998
4.3
90.7
7
16
30.8
3.0
6.9
22
166
2Bobby Douglass
B. Douglass
37.9
1972
14
75
198
1,246
6.3
89.0
9
12
49.8
4.5
6.1
32
175
3Terry Bradshaw
T. Bradshaw
38.1
1970
13
83
218
1,410
6.5
108.5
6
24
30.4
2.8
11.0
25
242
4Bobby Douglass
B. Douglass
40.4
1971
12
91
225
1,164
5.2
97.0
5
15
37.0
2.2
6.7
30
235
5Rusty Hilger
R. Hilger
41.2
1988
11
126
306
1,558
5.1
141.6
7
12
48.9
2.3
3.9
31
251
6Jim Zorn
J. Zorn
41.4
1977
10
104
251
1,687
6.7
168.7
16
19
54.3
6.4
7.6
11
43
7Doug Williams
D. Williams
41.8
1979
16
166
397
2,448
6.2
153.0
18
24
52.5
4.5
6.0
7
57
8Joe Pisarcik
J. Pisarcik
42.7
1977
13
103
241
1,346
5.6
103.5
4
14
42.3
1.7
5.8
32
262
9Scott Hunter
S. Hunter
43.2
1972
14
86
199
1,252
6.3
89.4
6
9
55.5
3.0
4.5
13
86
10Bob Avellini
B. Avellini
43.5
1976
14
118
271
1,580
5.8
112.9
8
15
49.4
3.0
5.5
24
225
11Steve Beuerlein
S. Beuerlein
44.1
1988
10
105
238
1,643
6.9
164.3
8
7
66.6
3.4
2.9
26
215
12Jay Schroeder
J. Schroeder
44.1
1988
9
113
256
1,839
7.2
204.3
13
13
64.6
5.1
5.1
19
178
13Akili Smith
A. Smith
44.2
2000
12
118
267
1,253
4.7
104.4
3
6
52.8
1.1
2.2
36
191
14Vince Evans
V. Evans
44.7
1981
16
195
436
2,354
5.4
147.1
11
20
51.1
2.5
4.6
23
173
15Joe Kapp
J. Kapp
44.7
1970
11
98
219
1,104
5.0
100.4
3
17
32.6
1.4
7.8
27
231
16Steve Bartkowski
S. Bartkowski
45.1
1975
11
115
255
1,662
6.5
151.1
13
15
59.3
5.1
5.9
19
197
17Jim Hart
J. Hart
45.3
1971
11
110
243
1,626
6.7
147.8
8
14
54.7
3.3
5.8
13
139
18Heath Shuler
H. Shuler
45.3
1994
11
120
265
1,658
6.3
150.7
10
12
59.6
3.8
4.5
12
83
19Joe Gilliam
J. Gilliam
45.3
1974
9
96
212
1,274
6.0
141.6
4
8
55.4
1.9
3.8
7
79
20Ryan Leaf
R. Leaf
45.3
1998
10
111
245
1,289
5.3
128.9
2
15
39.0
0.8
6.1
22
140
21Steve DeBerg
S. DeBerg
45.4
1978
12
137
302
1,570
5.2
130.8
8
22
40.0
2.6
7.3
17
156
22Mike Phipps
M. Phipps
45.7
1974
14
117
256
1,384
5.4
98.9
9
17
46.7
3.5
6.6
33
280
23Edd Hargett
E. Hargett
45.7
1971
14
96
210
1,191
5.7
85.1
6
5
63.4
2.9
2.4
10
68
24Jim Hart
J. Hart
45.8
1970
14
171
373
2,575
6.9
183.9
14
18
61.5
3.8
4.8
26
216
25Mark Malone
M. Malone
46.4
1987
12
156
336
1,896
5.6
158.0
6
19
46.7
1.8
5.7
18
151
StatMuse has season-level data for completion percentage and pass attempts per team game going back to the 1932 season.

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