Steve DeBerg has the worst passer rating by a rookie quarterback with 300+ passing attempts, with a 40.0 rating in 1978.
| NAME | RTG | ATT | SEASON | TM | GP | CMP | PCT | YDS | AVG | YDS/G | TD | INT | TD% | INT% | SCK | SCKY | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | S. DeBerg | 40.0 | 302 | 1978 |  SF | 12 | 137 | 45.4 | 1,570 | 5.2 | 130.8 | 8 | 22 | 2.6 | 7.3 | 17 | 156 |
| 2 | | J. Zorn | 49.5 | 439 | 1976 |  SEA | 14 | 208 | 47.4 | 2,571 | 5.9 | 183.6 | 12 | 27 | 2.7 | 6.2 | 25 | 196 |
| 3 | | N. Snead | 51.6 | 375 | 1961 |  WAS | 14 | 172 | 45.9 | 2,337 | 6.2 | 166.9 | 11 | 22 | 2.9 | 5.9 | ||
| 4 | | J. Komlo | 52.8 | 368 | 1979 |  DET | 16 | 183 | 49.7 | 2,238 | 6.1 | 139.9 | 11 | 23 | 3.0 | 6.3 | 40 | 361 |
| 5 | | J. Trudeau | 53.5 | 417 | 1986 |  IND | 12 | 204 | 48.9 | 2,225 | 5.3 | 185.4 | 8 | 18 | 1.9 | 4.3 | 29 | 213 |
| 6 | | K. Sweetan | 54.3 | 309 | 1966 | DET | 10 | 157 | 50.8 | 1,809 | 5.9 | 180.9 | 4 | 14 | 1.3 | 4.5 | ||
| 7 | | K. Orton | 59.7 | 368 | 2005 |  CHI | 15 | 190 | 51.6 | 1,869 | 5.1 | 124.6 | 9 | 13 | 2.4 | 3.5 | 30 | 190 |
| 8 | | J. Harrington | 59.9 | 429 | 2002 | DET | 14 | 215 | 50.1 | 2,294 | 5.3 | 163.9 | 12 | 16 | 2.8 | 3.7 | 8 | 75 |
| 9 |  | D. Kizer | 60.5 | 476 | 2017 |  CLE | 15 | 255 | 53.6 | 2,894 | 6.1 | 192.9 | 11 | 22 | 2.3 | 4.6 | 38 | 226 |
| 10 |  | M. Stafford | 61.0 | 377 | 2009 | DET | 10 | 201 | 53.3 | 2,267 | 6.0 | 226.7 | 13 | 20 | 3.4 | 5.3 | 24 | 169 |
| 11 | | B. Griese | 61.6 | 331 | 1967 |  MIA | 12 | 166 | 50.2 | 2,005 | 6.1 | 167.1 | 15 | 18 | 4.5 | 5.4 | ||
| 12 | | K. Collins | 61.9 | 433 | 1995 |  CAR | 15 | 214 | 49.4 | 2,717 | 6.3 | 181.1 | 14 | 19 | 3.2 | 4.4 | 24 | 150 |
| 13 | | C. Weinke | 62.0 | 540 | 2001 | CAR | 15 | 293 | 54.3 | 2,931 | 5.4 | 195.4 | 11 | 19 | 2.0 | 3.5 | 26 | 177 |
| 14 | | D. Carr | 62.8 | 444 | 2002 |  HOU | 16 | 233 | 52.5 | 2,592 | 5.8 | 162.0 | 9 | 15 | 2.0 | 3.4 | 76 | 411 |
| 15 | | M. Sanchez | 63.0 | 364 | 2009 |  NYJ | 15 | 196 | 53.8 | 2,444 | 6.7 | 162.9 | 12 | 20 | 3.3 | 5.5 | 26 | 195 |
| 16 | | D. Woodley | 63.1 | 327 | 1980 | MIA | 13 | 176 | 53.8 | 1,850 | 5.7 | 142.3 | 14 | 17 | 4.3 | 5.2 | 17 | 127 |
| 17 | | D. Bledsoe | 65.0 | 429 | 1993 |  NE | 13 | 214 | 49.9 | 2,494 | 5.8 | 191.8 | 15 | 15 | 3.5 | 3.5 | 16 | 99 |
| 18 | | D. Shaw | 65.3 | 321 | 1970 |  BUF | 14 | 178 | 55.5 | 2,507 | 7.8 | 179.1 | 10 | 20 | 3.1 | 6.2 | 41 | 387 |
| 19 | | B. Gabbert | 65.4 | 413 | 2011 |  JAX | 15 | 210 | 50.8 | 2,214 | 5.4 | 147.6 | 12 | 11 | 2.9 | 2.7 | 40 | 293 |
| 20 | | B. Gradkowski | 65.9 | 328 | 2006 |  TB | 13 | 177 | 54.0 | 1,661 | 5.1 | 127.8 | 9 | 9 | 2.7 | 2.7 | 25 | 146 |
| 21 |  | G. Smith | 66.5 | 443 | 2013 | NYJ | 16 | 247 | 55.8 | 3,046 | 6.9 | 190.4 | 12 | 21 | 2.7 | 4.7 | 43 | 315 |
| 22 | | V. Young | 66.7 | 357 | 2006 |  TEN | 15 | 184 | 51.5 | 2,199 | 6.2 | 146.6 | 12 | 13 | 3.4 | 3.6 | 25 | 129 |
| 23 |  | J. Rosen | 66.7 | 393 | 2018 |  ARI | 14 | 217 | 55.2 | 2,278 | 5.8 | 162.7 | 11 | 14 | 2.8 | 3.6 | 45 | 320 |
| 24 | | R. Mirer | 67.0 | 486 | 1993 | SEA | 16 | 274 | 56.4 | 2,833 | 5.8 | 177.1 | 12 | 17 | 2.5 | 3.5 | 47 | 235 |
| 25 |  | J. Allen | 67.9 | 320 | 2018 | BUF | 12 | 169 | 52.8 | 2,074 | 6.5 | 172.8 | 10 | 12 | 3.1 | 3.8 | 28 | 213 |
StatMuse has season-level data for passer rating and passing attempts going back to the 1932 season.
More 49ers Stats
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PPG
22.9
13th
OPP PPG
25.6
29th
RUSH YDS/G
127.2
12th
PASS YDS/G
260.2
4th
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| NFC East | W | L | T | PCT |
|---|---|---|---|---|
 Eagles | 14 | 3 | 0 | .824 |
 Commanders | 12 | 5 | 0 | .706 |
| NFC North | W | L | T | PCT |
| Lions | 15 | 2 | 0 | .882 |
 Vikings | 14 | 3 | 0 | .824 |
| NFC South | W | L | T | PCT |
| Buccaneers | 10 | 7 | 0 | .588 |
 Falcons | 8 | 9 | 0 | .471 |
| NFC West | W | L | T | PCT |
 Rams | 10 | 7 | 0 | .588 |
| Seahawks | 10 | 7 | 0 | .588 |
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