College production summary feeding the v3.0 similarity vector. The engine weights these features against the prospect corpus (2000–present) to build the comp grid below.
Historical college players whose production curves most closely match Brock Purdy. Hit-label colouring tags each comp's eventual NFL outcome: elite, starter, bust, unknown (still developing or never reached the NFL). Click an NFL name to jump to its veteran page when available.
| College player | School | Class | Similarity | NFL outcome | NFL career | Career fp | Peak3 fp/g | Seasons |
|---|---|---|---|---|---|---|---|---|
| Taylor Martinez | Nebraska | 2014 | 0.672 | unknown | Taylor Martinez | — | — | — |
| Jake Locker | Washington | 2011 | 0.602 | starter | Jake Locker | 345 | 12.0 | 4 |
| KJ Jefferson | UCF | 2025 | 0.558 | unknown | KJ Jefferson | — | — | — |
| Sean Clifford | Penn State | 2023 | 0.544 | unknown | Sean Clifford | 1 | 0.6 | 1 |
| Will Howard | Ohio State | 2025 | 0.529 | unknown | Will Howard | — | — | — |
| Luke Falk | Washington State | 2018 | 0.480 | unknown | Luke Falk | 9 | 2.9 | 1 |
| Matt Barkley | USC | 2013 | 0.478 | unknown | Matt Barkley | 106 | 10.1 | 7 |
| Khalil Tate | Arizona | 2020 | 0.469 | unknown | Khalil Tate | — | — | — |
| Landry Jones | Oklahoma | 2013 | 0.467 | bust | Landry Jones | 64 | 3.6 | 3 |
| Colt McCoy | Texas | 2010 | 0.467 | starter | Colt McCoy | 456 | 12.1 | 11 |
| Kenny Hill | TCU | 2018 | 0.466 | unknown | Kenny Hill | — | — | — |
| Sam Hartman | Notre Dame | 2024 | 0.465 | unknown | Sam Hartman | — | — | — |
| Russell Wilson | Wisconsin | 2012 | 0.458 | elite | Russell Wilson | 3765 | 21.7 | 14 |
| Kellen Mond | Texas A&M | 2021 | 0.457 | unknown | Kellen Mond | 0 | 0.2 | 1 |
| Spencer Rattler | South Carolina | 2024 | 0.455 | unknown | Spencer Rattler | 166 | 10.3 | 2 |
| Justin Herbert | Oregon | 2020 | 0.454 | elite | Justin Herbert | 1872 | 20.9 | 7 |
| Drew Lock | Missouri | 2019 | 0.446 | starter | Drew Lock | 445 | 14.9 | 7 |
| Charlie Brewer | Baylor | 2021 | 0.444 | unknown | Charlie Brewer | — | — | — |
| Haynes King | Colorado | 2026 | 0.439 | unknown | Haynes King | — | — | — |
| Michael Penix Jr. | Boise State | 2024 | 0.422 | unknown | Michael Penix Jr. | 247 | 12.0 | 3 |
| Brady Cook | Missouri | 2025 | 0.422 | unknown | Brady Cook | 28 | 5.7 | 1 |
| Pat White | West Virginia | 2009 | 0.421 | unknown | Pat White | 8 | 0.8 | 1 |
| Juice Williams | Illinois | 2010 | 0.421 | unknown | Juice Williams | — | — | — |
| Garrett Greene | West Virginia | 2025 | 0.414 | unknown | Garrett Greene | — | — | — |
| Tyler Huntley | Utah | 2020 | 0.407 | unknown | Tyler Huntley | 317 | 11.6 | 7 |
Methodology details: v3.0 prospect engine — PR 3 similarity, PR 4 projection, PR 5 back-test.