Jack Sanborn is a career quality starter — a linebacker whose body of work places Sanborn in the top half of all players at the position historically. The Knox model values sustained contribution over flash, and Sanborn's career arc reflects exactly that kind of reliable professional-grade performance.
Jack Sanborn
Top 38% all-time linebackersHigh-End Starter
Height6'2"
Weight234 lb
BornJul 29, 2000
Age25
CollegeWisconsinSee College Stats
ConferenceBig Ten
Rookie yr2022
A quality linebacker with a above-average career — a legitimate starter who contributed meaningfully across their career.
Career Value · VORP
VORP 19 · #3137 · Role PlayerWorth 19 points of value above a freely-available replacement linebacker — top 69% of all 4,642 ranked at the position. 3 of 4 seasons cleared the replacement bar, by +6.3 on average.See board →
Seasons above replacement
3 cleared
1 replaced
Beat replacement (adds to VORP) Below it — adds 0, never a debit
47
Replacement
the KC-H bar
→
3
Seasons over
cleared the bar
×
+6.3
Avg surplus
peak +9
3 seasons × ~6.3 surplus ≈ VORP 19
Combined Season Grid
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at once—no tab hopping.
3 grids split in one view
| 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% | |||||
| 2022 | — | CHI | 7 | — | 46 | 34 | 12 | 5 | 3 | 2.0 | 10.0 | 0 | 0 | 0 | — | 0 | 0 | — | 0.0% | 331 | 67.3% | 153 | 43.5% | 17 | 13 | 0.8 | 95.0 | 3.3 | 3 | 0 | 1 | 13 | 3 | 0.0 |
| 2023 | — | CHI | 15 | — | 48 | 30 | 18 | 7 | 1 | 1.0 | 9.0 | 1 | 2 | 0 | — | 0 | 0 | — | 0.0% | 412 | 38.8% | 294 | 66.2% | 26 | 23 | 0.9 | 88.1 | 2.8 | 3 | 2 | 0 | 16 | 11 | 0.1 |
| 2024 | — | CHI | 15 | — | 27 | 10 | 17 | 2 | 2 | 1.5 | 5.5 | 0 | 3 | 0 | — | 0 | 0 | — | 0.0% | 235 | 22.1% | 369 | 84.3% | 9 | 8 | 0.9 | 118.7 | 10.9 | 4 | 1 | 1 | 15 | 3 | 0.1 |
| 2025 | — | DAL | 5 | — | 33 | 15 | 18 | 1 | 0 | 0.0 | 1.0 | 0 | 1 | 0 | — | 0 | 0 | — | 0.0% | 230 | 67.2% | 43 | 24.2% | 18 | 16 | 0.9 | 111.3 | 6.3 | 0 | 0 | 0 | 1 | 6 | 0.1 |
| Career | — | 42 | — | 154 | 89 | 65 | 15 | 6 | 4.5 | 25.5 | 1 | 6 | 0 | — | 0 | 0 | — | 0.0% | 1,208 | 48.8% | 859 | 54.6% | 70 | 60 | — | — | — | 10 | 3 | 2 | 45 | 23 | — | |
Defense
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 22 | CHI | 7 | 7* | 46 | 34 | 12 | 5 | 3 | 2.0 | 10.0 | 0 | 0 | 0 | — | 0 | 0 | 3.9 |
| 2023 | 23 | CHI | 15 | 0* | 48 | 30 | 18 | 7 | 1 | 1.0 | 9.0 | 1 | 2 | 0 | — | 0 | 0 | 7.2 |
| 2024 | 24 | CHI | 15 | 0* | 27 | 10 | 17 | 2 | 2 | 1.5 | 5.5 | 0 | 3 | 0 | — | 0 | 0 | 5.6 |
| 2025 | 25 | DAL | 5 | 4* | 33 | 15 | 18 | 1 | 0 | 0.0 | 1.0 | 0 | 1 | 0 | — | 0 | 0 | 2.3 |
| Career | 42 | 11* | 154 | 89 | 65 | 15 | 6 | — | — | 1 | 6 | 0 | — | 0 | 0 | 19 |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Snap Counts
| Season | Age | Team | G | GS | Off | Off% | Def | Def% | ST | ST% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 22 | CHI | 14 | 9* | — | 0.0% | 331 | 67.3% | 153 | 43.5% |
| 2023 | 23 | CHI | 17 | 0* | — | 0.0% | 412 | 38.8% | 294 | 66.2% |
| 2024 | 24 | CHI | 17 | 0* | — | 0.0% | 235 | 22.1% | 369 | 84.3% |
| 2025 | 25 | DAL | 6 | 4* | — | 0.0% | 230 | 67.2% | 43 | 24.2% |
| Career | 54 | 13* | — | — | 1,208 | — | 859 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Advanced Defense & Coverage (2018+)
| Season | Age | Team | G | GS | Tgt | Cmp | Cmp% | RateAll | ADOT | Prss | Hrry | QBKD | Bltz | MissTkl | Miss% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 22 | CHI | 14 | 9* | 17 | 13 | 0.8 | 95.0 | 3.3 | 3 | 0 | 1 | 13 | 3 | 0.0 |
| 2023 | 23 | CHI | 17 | 0* | 26 | 23 | 0.9 | 88.1 | 2.8 | 3 | 2 | 0 | 16 | 11 | 0.1 |
| 2024 | 24 | CHI | 17 | 0* | 9 | 8 | 0.9 | 118.7 | 10.9 | 4 | 1 | 1 | 15 | 3 | 0.1 |
| 2025 | 25 | DAL | 6 | 4* | 18 | 16 | 0.9 | 111.3 | 6.3 | 0 | 0 | 0 | 1 | 6 | 0.1 |
| Career | 54 | 13* | 70 | 60 | — | — | — | 10 | 3 | 2 | 45 | 23 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
KV-H Anatomy
KV-H 49 · SolidA solid career by KV-H: a remarkably steady profile that scores 49 of 100, era-normalized against tackles/g peers across 4 scored seasons, with a short career trimming the score.
51
Sustained
career value
×.6
53
Peak
best 3 seasons
×.4
×0.93
Longevity
career length
Blend 51.8 × longevity 0.93 = KV-H 49· confidence 88%
What builds the career mark of 51
On-field 36.9
Availability 14.1
On-field production Staying available
Season-by-season quality (era-relative tackles/g)
2022bestavg 492025
All-Time Standing
how this career measures against the all-time greats at the position2
Depth
of 100
Reached 2% of the all-time Sacks leader — a rotational/depth all-time profile at the position.
2% of the all-time Sacks leader2
0 categories ≥25% of the all-time leader0
A 0–100 scale where 100 = matched the all-time leaderat this position. Built only from visible encyclopedia data — career production vs. the all-time leader, plus efficiency (EPA) and comparable-player confidence — so it's a transparent context score, not a subjective rating. Tiers: Elite ≥ 85 · Strong ≥ 65 · Solid ≥ 45 · Depth < 45. Comparable-player confidence: 91%.
Per-Snap Impact
Linebackers · proprietary · 2012+49
Solid
SIS
Disruption/1002.69Snap share48.8%Def snaps1,208ReliableCV 0.40
Production per snap — the box score normalized by opportunity. SIS is z-scored within linebackers, shrinkage-regularized so small samples don't spike, over the NFL snap-count era (2012+).
Career Aging Trajectory
vs. position group average · KV-H basisAmber = this player (normalized to own peak). Indigo = average linebackers aging curve. Group peak age: 25. Source: StatVault KV-H era (1999+).
Combine · 2022
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
4.73s
40-Yard
Below avg · 35th pct
Pos 35thAll 41thClass Pos 20thClass All 38th
34.5"
Vertical
Above avg · 54th pct
Pos 54thAll 59thClass Pos 22thClass All 63th
114"
Broad Jump
Below avg · 26th pct
Pos 26thAll 38thClass Pos 7thClass All 33th
20 reps
Bench
Below avg · 30th pct
Pos 30thAll 44thClass Pos 6thClass All 29th
College Defense
Reference Graph
Career teammates and draft class, derived from year-by-year rosters — every name is linked.
Top Teammates
Cairo SantosK3yCole KmetTE3yJaylon JohnsonCB3yLarry BoromG3yElijah HicksSAF3yJaquan BriskerSAF3yJosh BlackwellCB3yBraxton JonesOT3yDominique RobinsonDE3yTeven JenkinsG3yKyler GordonCB3yVelus Jones Jr.WR3yDarrynton EvansRB3yJaylon JonesDB3yMarcedes LewisTE2yCody WhitehairG2yDJ MooreWR2yPatrick ScalesLS2yTremaine EdmundsMLB2yLucas PatrickG2yMontez SweatDE2yT.J. EdwardsLB2yDeMarcus WalkerDE2yAndrew BillingsDT2y
Franchise Succession
the room, before and afterJack inherited the Chicago Bears LB room from Trevis Gipson (2020–2022), and handed it to T.J. Edwards (2023–2025).
Similar Players
Statistical + physical similarity across every player in the database, position-relevant (0–100%).
Movementderived from season history
- 2025team change
Joined DAL (from CHI)
- 2025final season
Last recorded season with DAL
- 2022signing
Entered the NFL with CHI
Athletic & Unique Profile
verified measurements and curated source-tagged facts6'2" / 234 lb
Frame
234 lb at 4.73s
Size-speed
34.5" vert / 114" broad
Explosion
20 reps
Bench power
Injury History
From nflverse weekly injury reports · coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2023 | CHI | 0 | W11Questionable· Ankle / Illness |
Knox
StatVault's proprietary player intelligence, informed by full career data. How Knox works →
Historical Knox · KV-H
Era-normalized career quality — z-scored against 4-season peers. See all →
49
peak 53
Season Report Cards· KV-H era-normalized per season
C+2022
C+2023
C+2024
D2025
Availability
Career durability — games played vs. scheduled, across 4 seasons.
79%
Era Translator
Tackles translated to the 2025NFL — each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
| Season | Actual Tackles | Tackles/G | → 2025 Tackles | → 2025 /G |
|---|---|---|---|---|
| 2022 | 46 | 6.6 | 108+62 | 6.3 |
| 2023 | 48 | 3.2 | 54+6 | 3.2 |
| 2024 | 27 | 1.8 | 32+5 | 1.9 |
| 2025 | 33 | 6.6 | 112+79 | 6.6 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:snap_counts, nflverse:combine, nflverse:injuries, wikipedia:college-stats (CC-BY-SA, facts-only) · multi-source verified via the StatVault Oracle · updated 6/18/2026
Career Value · VORP
19 career value over replacement — #3137 all-time of 4,642. 4.8/season above a replacement-level LB.
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