nfl player lowest passing completion percentage with a minimum 112 passing attempts in a season

Warren Heller has the lowest completion percentage with 112+ passing attempts in a season, at 27.7 percent in his rookie season in 1934.

NAMEPCTATTSEASONTMGPCMPYDSAVGYDS/GTDINTRTGTD%INT%SCKSCKY
1Warren Heller
W. Heller
27.7
112
1934
12
31
511
4.6
42.6
2
15
12.5
1.8
13.4
2Billy Patterson
B. Patterson
29.1
117
1940
11
34
529
4.5
48.1
3
15
14.9
2.6
12.8
3Roy Zimmerman
R. Zimmerman
34.7
124
1943
10
43
846
6.8
84.6
9
17
44.0
7.3
13.7
4Jack Scarbath
J. Scarbath
34.9
129
1953
12
45
862
6.7
71.8
9
12
43.5
7.0
9.3
5John McCormick
J. McCormick
35.2
193
1966
14
68
993
5.1
70.9
6
15
30.9
3.1
7.8
6Gary Marangi
G. Marangi
35.3
232
1976
11
82
998
4.3
90.7
7
16
30.8
3.0
6.9
22
166
7Jug Girard
J. Girard
35.4
175
1949
12
62
881
5.0
73.4
4
12
31.6
2.3
6.9
8Dave Smukler
D. Smukler
35.6
118
1937
11
42
432
3.7
39.3
5
14
21.5
4.2
11.9
9George Blanda
G. Blanda
35.9
131
1952
12
47
664
5.1
55.3
8
11
38.5
6.1
8.4
10Dick Wood
D. Wood
36.1
230
1966
14
83
993
4.3
70.9
4
14
30.6
1.7
6.1
11Adrian Burk
A. Burk
36.1
119
1950
12
43
798
6.7
66.5
6
12
37.4
5.0
10.1
12Joe Geri
J. Geri
36.3
113
1950
12
41
866
7.7
72.2
6
15
42.4
5.3
13.3
13Arnie Herber
A. Herber
36.5
115
1934
11
42
799
6.9
72.6
8
12
45.1
7.0
10.4
14Tobin Rote
T. Rote
37.1
224
1950
12
83
1,231
5.5
102.6
7
24
26.7
3.1
10.7
15Hugh McCullough
H. McCullough
37.1
116
1940
11
43
529
4.6
48.1
4
21
23.9
3.4
18.1
16Cotton Davidson
C. Davidson
37.1
321
1962
TOT
14
119
1,977
6.2
141.2
7
23
36.1
2.2
7.2
17Harry Gilmer
H. Gilmer
37.1
132
1949
12
49
869
6.6
72.4
4
15
31.0
3.0
11.4
18Kent Nix
K. Nix
37.2
137
1971
8
51
760
5.5
95.0
6
10
40.4
4.4
7.3
10
91
19Doug Williams
D. Williams
37.6
194
1978
10
73
1,170
6.0
117.0
7
8
53.4
3.6
4.1
6
69
20Lamar McHan
L. McHan
37.7
207
1955
12
78
1,085
5.2
90.4
11
19
34.8
5.3
9.2
21Mike Taliaferro
M. Taliaferro
37.8
119
1965
14
45
531
4.5
37.9
3
7
36.1
2.5
5.9
22Warren Rabb
W. Rabb
37.9
177
1962
14
67
1,196
6.8
85.4
10
14
47.7
5.6
7.9
23Bobby Douglass
B. Douglass
37.9
198
1972
14
75
1,246
6.3
89.0
9
12
49.8
4.5
6.1
32
175
24Mike Taliaferro
M. Taliaferro
38.1
176
1968
7
67
889
5.1
127.0
4
15
26.9
2.3
8.5
25Terry Bradshaw
T. Bradshaw
38.1
218
1970
13
83
1,410
6.5
108.5
6
24
30.4
2.8
11.0
25
242
StatMuse has season-level data for completion percentage and passing attempts going back to the 1932 season.

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TEAMWLTPCT
Steelers Steelers
9
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NFL 2025 Standings

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12
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Bills Bills - x
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4
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.733
6
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AFC NorthWLTPCT
9
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.600
7
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NFC EastWLTPCT
10
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11
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NFC NorthWLTPCT
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11
4
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9
5
1
.633
8
7
0
.533
7
8
0
.467
NFC SouthWLTPCT
8
7
0
.533
7
8
0
.467
6
9
0
.400
5
10
0
.333
NFC WestWLTPCT
12
3
0
.800
49ers 49ers - x
11
4
0
.733
Rams Rams - x
11
4
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.733
3
12
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.200

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