what was the worst completion percentage ever

Cotton Davidson has the worst career completion percentage, at 43.9 percent.

Interpreted as:
What was the worst completion percentage with a minimum of 1500 passing attempts by a player ever?
NAMEPCTATTGPCMPYDSAVGYDS/GTDINTRTGTD%INT%SCKSCKY
1Cotton Davidson
C. Davidson
43.9
1,752
111
770
11,760
6.7
105.9
73
108
54.9
4.2
6.2
2Tobin Rote
T. Rote
45.7
2,907
149
1,329
18,850
6.5
126.5
148
191
56.8
5.1
6.6
3Babe Parilli
B. Parilli
46.6
3,330
189
1,552
22,681
6.8
120.0
178
220
59.6
5.3
6.6
0
0
4Jack Kemp
J. Kemp
46.7
3,073
122
1,436
21,218
6.9
173.9
114
183
57.3
3.7
6.0
21
187
5George Blanda
G. Blanda
47.7
4,007
340
1,911
26,920
6.7
79.2
236
277
60.6
5.9
6.9
12
94
6Ed Brown
E. Brown
47.8
1,987
154
949
15,600
7.9
101.3
102
138
62.8
5.1
6.9
7Tom Flores
T. Flores
48.9
1,715
106
838
11,959
7.0
112.8
93
92
67.6
5.4
5.4
1
11
8Bobby Layne
B. Layne
49.0
3,700
175
1,814
26,768
7.2
153.0
196
243
63.4
5.3
6.6
9Mike Phipps
M. Phipps
49.2
1,799
119
886
10,506
5.8
88.3
55
108
52.6
3.1
6.0
172
1,514
10Doug Williams
D. Williams
49.5
2,507
88
1,240
16,998
6.8
193.2
100
93
69.4
4.0
3.7
84
734
11Daryle Lamonica
D. Lamonica
49.5
2,601
151
1,288
19,154
7.4
126.8
164
138
72.9
6.3
5.3
72
636
12Eddie LeBaron
E. LeBaron
50.0
1,796
134
898
13,399
7.5
100.0
104
141
61.4
5.8
7.9
13Charlie Conerly
C. Conerly
50.1
2,833
161
1,418
19,488
6.9
121.0
173
167
68.2
6.1
5.9
14Mike Pagel
M. Pagel
50.1
1,509
132
756
9,414
6.2
71.3
49
63
63.3
3.2
4.2
115
837
15Joe Namath
J. Namath
50.1
3,762
140
1,886
27,663
7.4
197.6
173
220
65.5
4.6
5.8
109
1,052
16Bob Waterfield
B. Waterfield
50.3
1,617
91
814
11,849
7.3
130.2
97
128
61.6
6.0
7.9
17Frank Tripucka
F. Tripucka
50.4
1,745
75
879
10,282
5.9
137.1
69
124
52.2
4.0
7.1
18John Hadl
J. Hadl
50.4
4,687
224
2,363
33,503
7.1
149.6
244
268
67.4
5.2
5.7
179
1,514
19Bill Nelsen
B. Nelsen
50.6
1,905
90
963
14,165
7.4
157.4
98
101
70.2
5.1
5.3
50
494
20Don Meredith
D. Meredith
50.7
2,308
104
1,170
17,199
7.5
165.4
135
111
74.8
5.8
4.8
21Jay Schroeder
J. Schroeder
50.8
2,808
118
1,426
20,063
7.1
170.0
114
108
71.7
4.1
3.8
208
1,600
22Mark Malone
M. Malone
50.9
1,648
73
839
10,175
6.2
139.4
60
81
61.9
3.6
4.9
86
671
23Dan Pastorini
D. Pastorini
50.9
3,055
140
1,556
18,515
6.1
132.3
103
161
59.1
3.4
5.3
246
2,229
24Jim Hart
J. Hart
51.1
5,076
201
2,593
34,665
6.8
172.5
209
247
66.6
4.1
4.9
243
1,936
25Frank Ryan
F. Ryan
51.1
2,133
126
1,090
16,042
7.5
127.3
149
111
77.6
7.0
5.2
4
35
StatMuse has season-level data for completion percentage and passing attempts going back to the 1932 season.

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Last Game
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Sun 2 Nov 2025

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AFC NorthWLTPCT
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AFC SouthWLTPCT
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NFL 2025 Scores & Schedule

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