Isaiah McDuffie is a career quality starter — a linebacker whose body of work places McDuffie in the top quarter of all players at the position historically. The Knox model values sustained contribution over flash, and McDuffie's career arc reflects exactly that kind of reliable professional-grade performance.
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| Season | Age | Team | G | GS | Defense | Snap Counts | Advanced Defense & Coverage (2018+) | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | Off | Off% | Def | Def% | ST | ST% | Tgt | Cmp | Cmp% | RateAll | ADOT | Prss | Hrry | QBKD | Bltz | MissTkl | Miss% | |||||
| 2021 | 22 | GB | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.0% | — | 0.0% | 192 | 57.1% | — | — | — | — | — | — | — | — | — | — | — |
| 2022 | 23 | GB | 8 | — | 25 | 14 | 11 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | — | 0 | 0 | — | 0.0% | 174 | 14.8% | 263 | 62.5% | 12 | 9 | 0.8 | 117.7 | 4.4 | 0 | 0 | 0 | 4 | 1 | 0.0 |
| 2023 | 24 | GB | 11 | — | 69 | 39 | 30 | 5 | 3 | 0.5 | 8.5 | 0 | 1 | 0 | — | 0 | 0 | — | 0.0% | 513 | 49.1% | 202 | 49.5% | 31 | 24 | 0.8 | 103.4 | 4.6 | 4 | 1 | 2 | 19 | 5 | 0.1 |
| 2024 | 25 | GB | 16 | — | 89 | 38 | 51 | 3 | 3 | 0.5 | 6.5 | 0 | 3 | 1 | — | 0 | 0 | — | 0.0% | 699 | 63.5% | 125 | 27.8% | 56 | 47 | 0.8 | 126.6 | 3.3 | 5 | 2 | 2 | 17 | 10 | 0.1 |
| 2025 | 26 | GB | 16 | — | 91 | 46 | 45 | 3 | 3 | 1.0 | 7.0 | 1 | 1 | 0 | — | 0 | 0 | — | 0.0% | 505 | 46.0% | 302 | 72.0% | 32 | 22 | 0.7 | 79.3 | 3.4 | 3 | 0 | 1 | 13 | 6 | 0.1 |
| Career | — | 64 | — | 274 | 137 | 137 | 11 | 9 | 2.0 | 22.0 | 1 | 5 | 1 | — | 0 | 0 | — | 0.0% | 1,891 | 36.2% | 1,084 | 53.7% | 131 | 102 | — | — | — | 12 | 3 | 5 | 53 | 22 | — | |
Career Value · VORP
61 career value over replacement — #1814 all-time of 4,649. 15.3/season above a replacement-level LB.
Pick #220 (Rd 6) · GB · 2021 · +42.2 vs expected KV-H
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| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 23 | GB | 8 | 0* | 25 | 14 | 11 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | — | 0 | 0 | 2.4 |
| 2023 | 24 | GB | 11 | 0* | 69 | 39 | 30 | 5 | 3 | 0.5 | 8.5 | 0 | 1 | 0 | — | 0 | 0 | 4.9 |
| 2024 | 25 | GB | 16 | 11* | 89 | 38 | 51 | 3 | 3 | 0.5 | 6.5 | 0 | 3 | 1 | — | 0 | 0 | 7.1 |
| 2025 | 26 | GB | 16 | 0* | 91 | 46 | 45 | 3 | 3 | 1.0 | 7.0 | 1 | 1 | 0 | — | 0 | 0 | 8.3 |
| Career | 51 | 11* | 274 | 137 | 137 | 11 | 9 | — | — | 1 | 5 | 1 | — | 0 | 0 | 22.7 |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Off | Off% | Def | Def% | ST | ST% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 22 | GB | 13 | — | — | 0.0% | — | 0.0% | 192 | 57.1% |
| 2022 | 23 | GB | 17 | 0* | — | 0.0% | 174 | 14.8% | 263 | 62.5% |
| 2023 | 24 | GB | 16 | 0* | — | 0.0% | 513 | 49.1% | 202 | 49.5% |
| 2024 | 25 | GB | 17 | 11* | — | 0.0% | 699 | 63.5% | 125 | 27.8% |
| 2025 | 26 | GB | 17 | 0* | — | 0.0% | 505 | 46.0% | 302 | 72.0% |
| Career | 80 | 11* | — | — | 1,891 | — | 1,084 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Tgt | Cmp | Cmp% | RateAll | ADOT | Prss | Hrry | QBKD | Bltz | MissTkl | Miss% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 23 | GB | 17 | 0* | 12 | 9 | 0.8 | 117.7 | 4.4 | 0 | 0 | 0 | 4 | 1 | 0.0 |
| 2023 | 24 | GB | 16 | 0* | 31 | 24 | 0.8 | 103.4 | 4.6 | 4 | 1 | 2 | 19 | 5 | 0.1 |
| 2024 | 25 | GB | 17 | 11* | 56 | 47 | 0.8 | 126.6 | 3.3 | 5 | 2 | 2 | 17 | 10 | 0.1 |
| 2025 | 26 | GB | 17 | 0* | 32 | 22 | 0.7 | 79.3 | 3.4 | 3 | 0 | 1 | 13 | 6 | 0.1 |
| Career | 67 | 11* | 131 | 102 | — | — | — | 12 | 3 | 5 | 53 | 22 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
A strong starter career by KV-H: a well-rounded profile that scores 61 of 100, era-normalized against tackles/g peers across 4 scored seasons, with a short career trimming the score.
Blend 65.2 × longevity 0.93 = KV-H 61· confidence 100%
Season-by-season quality (era-relative tackles/g)
Freddy Keiaho
LB
89% match
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