Kansas City Chiefs Single Season Passing Leaders

Ranked by Pass Completion Percentage

The following are the Kansas City Chiefs single season passing leaders ranked by pass completion percentage. Included are player stats for the Kansas City Chiefs (NFL) from 1970-2020, the Kansas City Chiefs (AFL) from 1963-1969 and the Dallas Texans (AFL) from 1960-1962. Only stats for Regular Season Games have been included. Alex Smith is the Kansas City Chiefs single season leader in pass completion percentage with 67.5.

Players active with the Kansas City Chiefs during the 2019 NFL season are listed in bold.

Leaders based on 224 pass attempts

      Passing
Player Season Team Att Cmp Pct Yds Int TD Lg Rating
  A. Smith 2017 KC 505 341 67.5 4,042 5 26 79t 104.7
  A. Smith 2016 KC 489 328 67.1 3,502 8 15 80t 91.2
  T. Green 2004 KC 556 369 66.4 4,591 17 27 70t 95.2
  P. Mahomes 2018 KC 580 383 66.0 5,097 12 50 89t 113.8
  P. Mahomes 2019 KC 484 319 65.9 4,031 5 26 83t 105.3
  A. Smith 2015 KC 470 307 65.3 3,486 7 20 80t 95.4
  A. Smith 2014 KC 464 303 65.3 3,265 6 18 70t 93.4
  T. Green 2003 KC 523 330 63.1 4,039 12 24 67t 92.6
  T. Green 2005 KC 507 317 62.5 4,014 10 17 60t 90.1
  D. Huard 2007 KC 332 206 62.0 2,257 13 11 58 76.8
  T. Green 2002 KC 470 287 61.1 3,690 13 26 99t 92.6
  L. Dawson 1962 DalT 310 189 61.0 2,759 17 29 92t 98.3
  J. Montana 1993 KC 298 181 60.7 2,144 7 13 50t 87.4
  D. Huard 2006 KC 244 148 60.7 1,878 1 11 78 98.0
  J. Montana 1994 KC 493 299 60.6 3,283 9 16 57t 83.6
  A. Smith 2013 KC 508 308 60.6 3,313 7 23 71t 89.1
  S. DeBerg 1989 KC 324 196 60.5 2,529 16 11 50 75.8
  S. Fuller 1980 KC 320 193 60.3 2,250 12 10 77 76.4
  E. Grbac 2000 KC 547 326 59.6 4,169 14 28 81t 89.9
  M. Cassel 2011 KC 269 160 59.5 1,713 9 10 52t 76.6
  S. DeBerg 1991 KC 434 256 59.0 2,965 14 17 63 79.3
  E. Grbac 1999 KC 499 294 58.9 3,389 15 22 86t 81.7
  L. Dawson 1974 KC 235 138 58.7 1,573 13 7 84t 65.8
  L. Dawson 1968 KC 224 131 58.5 2,109 9 17 92t 98.6
  M. Cassel 2010 KC 450 262 58.2 3,116 7 27 75t 93.0
  R. Gannon 1998 KC 354 206 58.2 2,305 6 10 80t 80.1
  M. Cassel 2012 KC 277 161 58.1 1,796 12 6 46 66.7
  S. DeBerg 1990 KC 444 258 58.1 3,444 4 23 90t 96.3
  L. Dawson 1967 KC 357 206 57.7 2,651 17 24 71t 83.7
  B. Kenney 1983 KC 603 346 57.4 4,348 18 24 53 80.8
  L. Dawson 1972 KC 305 175 57.4 1,835 12 13 44 72.8
  E. Grbac 1997 KC 314 179 57.0 1,943 6 11 55t 79.1
  B. Croyle 2007 KC 224 127 56.7 1,227 6 6 35 69.9
  T. Green 2001 KC 523 296 56.6 3,783 24 17 67t 71.1
  B. Kenney 1987 KC 273 154 56.4 2,107 9 15 81t 85.8
  S. Bono 1995 KC 520 293 56.3 3,121 10 21 60t 79.5
  L. Dawson 1964 KC 354 199 56.2 2,879 18 30 72t 89.9
  L. Dawson 1966 KC 284 159 56.0 2,527 10 26 89 101.7
  M. Livingston 1976 KC 338 189 55.9 2,682 13 12 57 77.6
  D. Krieg 1992 KC 413 230 55.7 3,115 12 15 77t 79.9
  L. Dawson 1971 KC 301 167 55.5 2,504 13 15 82 81.6
  M. Cassel 2009 KC 493 271 55.0 2,924 16 16 61 69.9
  M. Livingston 1978 KC 290 159 54.8 1,573 13 5 44 57.4
  T. Thigpen 2008 KC 420 230 54.8 2,608 12 18 75 76.0
  S. DeBerg 1988 KC 414 224 54.1 2,935 16 16 80t 73.5
  S. Fuller 1979 KC 270 146 54.1 1,484 14 6 40 55.8
  L. Dawson 1963 KC 352 190 54.0 2,389 19 26 82t 77.5
  L. Dawson 1970 KC 262 141 53.8 1,876 14 13 61t 71.0
  S. Bono 1996 KC 438 235 53.7 2,572 13 12 69 68.0
  B. Kenney 1981 KC 274 147 53.6 1,983 16 9 64t 63.6