Alex Smith has the best completion percentage by a Chiefs quarterback in a season, at 67.5 percent in 2017.
Interpreted as:
highest completion percentage with a minimum of 7 passing attempts per team game in a season for a chiefs qb| NAME | PCT | SEASON | TM | GP | CMP | ATT | YDS | AVG | YDS/G | TD | INT | RTG | TD% | INT% | SCK | SCKY | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | A. Smith | 67.5 | 2017 |  KC | 15 | 341 | 505 | 4,042 | 8.0 | 269.5 | 26 | 5 | 104.7 | 5.1 | 1.0 | 35 | 207 |
| 2 |  | P. Mahomes | 67.5 | 2024 | KC | 16 | 392 | 581 | 3,928 | 6.8 | 245.5 | 26 | 11 | 93.5 | 4.5 | 1.9 | 36 | 239 |
| 3 | | P. Mahomes | 67.2 | 2023 | KC | 16 | 401 | 597 | 4,183 | 7.0 | 261.4 | 27 | 14 | 92.6 | 4.5 | 2.3 | 27 | 186 |
| 4 | | P. Mahomes | 67.1 | 2022 | KC | 17 | 435 | 648 | 5,250 | 8.1 | 308.8 | 41 | 12 | 105.2 | 6.3 | 1.9 | 26 | 188 |
| 5 | | A. Smith | 67.1 | 2016 | KC | 15 | 328 | 489 | 3,502 | 7.2 | 233.5 | 15 | 8 | 91.2 | 3.1 | 1.6 | 28 | 140 |
| 6 |  | L. Dawson | 66.4 | 1975 | KC | 12 | 93 | 140 | 1,095 | 7.8 | 91.3 | 5 | 4 | 90.0 | 3.6 | 2.9 | 23 | 196 |
| 7 | | T. Green | 66.4 | 2004 | KC | 16 | 369 | 556 | 4,591 | 8.3 | 286.9 | 27 | 17 | 95.2 | 4.9 | 3.1 | 32 | 227 |
| 8 | | P. Mahomes | 66.3 | 2020 | KC | 15 | 390 | 588 | 4,740 | 8.1 | 316.0 | 38 | 6 | 108.2 | 6.5 | 1.0 | 22 | 147 |
| 9 | | P. Mahomes | 66.3 | 2021 | KC | 17 | 436 | 658 | 4,839 | 7.4 | 284.6 | 37 | 13 | 98.5 | 5.6 | 2.0 | 28 | 146 |
| 10 | | P. Mahomes | 66.0 | 2018 | KC | 16 | 383 | 580 | 5,097 | 8.8 | 318.6 | 50 | 12 | 113.8 | 8.6 | 2.1 | 26 | 171 |
| 11 | | P. Mahomes | 65.9 | 2019 | KC | 14 | 319 | 484 | 4,031 | 8.3 | 287.9 | 26 | 5 | 105.3 | 5.4 | 1.0 | 17 | 127 |
| 12 | | L. Dawson | 65.3 | 1973 | KC | 8 | 66 | 101 | 725 | 7.2 | 90.6 | 2 | 5 | 72.4 | 2.0 | 5.0 | 14 | 104 |
| 13 | | A. Smith | 65.3 | 2015 | KC | 16 | 307 | 470 | 3,486 | 7.4 | 217.9 | 20 | 7 | 95.4 | 4.3 | 1.5 | 45 | 235 |
| 14 | | A. Smith | 65.3 | 2014 | KC | 15 | 303 | 464 | 3,265 | 7.0 | 217.7 | 18 | 6 | 93.4 | 3.9 | 1.3 | 45 | 229 |
| 15 | | P. Mahomes | 64.6 | 2025 | KC | 12 | 285 | 441 | 3,238 | 7.3 | 269.8 | 22 | 7 | 96.5 | 5.0 | 1.6 | 27 | 160 |
| 16 | | T. Green | 63.1 | 2003 | KC | 16 | 330 | 523 | 4,039 | 7.7 | 252.4 | 24 | 12 | 92.6 | 4.6 | 2.3 | 20 | 130 |
| 17 | | T. Green | 62.5 | 2005 | KC | 16 | 317 | 507 | 4,014 | 7.9 | 250.9 | 17 | 10 | 90.1 | 3.4 | 2.0 | 32 | 204 |
| 18 | | D. Huard | 62.0 | 2007 | KC | 11 | 206 | 332 | 2,257 | 6.8 | 205.2 | 11 | 13 | 76.8 | 3.3 | 3.9 | 36 | 234 |
| 19 | | T. Green | 61.1 | 2006 | KC | 8 | 121 | 198 | 1,342 | 6.8 | 167.8 | 7 | 9 | 74.1 | 3.5 | 4.5 | 24 | 127 |
| 20 | | T. Green | 61.1 | 2002 | KC | 16 | 287 | 470 | 3,690 | 7.9 | 230.6 | 26 | 13 | 92.6 | 5.5 | 2.8 | 26 | 141 |
| 21 | | L. Dawson | 61.0 | 1962 | DLT | 14 | 189 | 310 | 2,759 | 8.9 | 197.1 | 29 | 17 | 98.3 | 9.4 | 5.5 | ||
| 22 |  | J. Montana | 60.7 | 1993 | KC | 11 | 181 | 298 | 2,144 | 7.2 | 194.9 | 13 | 7 | 87.4 | 4.4 | 2.3 | 12 | 61 |
| 23 | | D. Huard | 60.7 | 2006 | KC | 10 | 148 | 244 | 1,878 | 7.7 | 187.8 | 11 | 1 | 98.0 | 4.5 | 0.4 | 16 | 106 |
| 24 | | J. Montana | 60.6 | 1994 | KC | 14 | 299 | 493 | 3,283 | 6.7 | 234.5 | 16 | 9 | 83.6 | 3.2 | 1.8 | 19 | 132 |
| 25 | | A. Smith | 60.6 | 2013 | KC | 15 | 308 | 508 | 3,313 | 6.5 | 220.9 | 23 | 7 | 89.1 | 4.5 | 1.4 | 39 | 210 |
StatMuse has season-level data for completion percentage and pass attempts per team game going back to the 1932 season.
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