Tracy Simien is a career quality starter — a linebacker whose body of work places Simien in the top quarter of all players at the position historically. The Knox model values sustained contribution over flash, and Simien's career arc reflects exactly that kind of reliable professional-grade performance.
Tracy Simien
Top 18% all-time linebackersIron Man
A high-end linebacker defined as much by excellent availability over their career as by their on-field impact (top 20% all-time). Coaches and teammates could count on them being available.
Career Value · VORP
VORP 98 · #1164 · High-ValueWorth 98 points of value above a freely-available replacement linebacker — top 26% of all 4,642 ranked at the position. 7 of 8 seasons cleared the replacement bar, by +14 on average.See board →
Seasons above replacement
7 cleared
Beat replacement (adds to VORP) Below it — adds 0, never a debit
47
Replacement
the KC-H bar
→
7
Seasons over
cleared the bar
×
+14
Avg surplus
peak +18
7 seasons × ~14 surplus ≈ VORP 98
Combined Season Grid
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at once—no tab hopping.
1 grid split in one view
| Season | Age | Team | G | GS | Defense | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | |||||
| 1991 | — | KC | 15 | — | 56 | 0 | — | — | — | 2.0 | 2.0 | — | 0 | 2 | — | — | — |
| 1992 | — | KC | 15 | — | 69 | 57 | — | — | — | 1.0 | 1.0 | 3 | 8 | 0 | — | — | — |
| 1993 | — | KC | 16 | — | 80 | 65 | — | — | — | 0.0 | 0.0 | — | 2 | 0 | — | — | — |
| 1994 | — | KC | 15 | — | 72 | 58 | — | — | — | 0.0 | 0.0 | — | 1 | 0 | — | — | — |
| 1995 | — | KC | 16 | — | 72 | 64 | — | — | — | 1.0 | 1.0 | — | 0 | 0 | — | — | — |
| 1996 | — | KC | 16 | — | 76 | 64 | — | — | — | 0.0 | 0.0 | 1 | 1 | 0 | — | — | — |
| 1997 | — | KC | 16 | — | 7 | 7 | — | — | — | 0.0 | 0.0 | — | 0 | 0 | — | — | — |
| 1999 | — | LAC | 4 | — | 7 | 6 | 1 | 1 | 1 | 1.0 | 3.0 | 1 | 1 | 0 | 1 | 0 | 0 |
| Career | — | 113 | — | 439 | 321 | 1 | 1 | 1 | 5.0 | 7.0 | 5 | 13 | 2 | 1 | 0 | 0 | |
Defense
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | 24 | KC | 15 | — | 56 | 0 | — | — | — | 2.0 | 2.0 | — | 0 | 2 | — | — | — | 8 |
| 1992 | 25 | KC | 15 | — | 69 | 57 | — | — | — | 1.0 | 1.0 | 3 | 8 | 0 | — | — | — | 11.8 |
| 1993 | 26 | KC | 16 | — | 80 | 65 | — | — | — | 0.0 | 0.0 | — | 2 | 0 | — | — | — | 6.2 |
| 1994 | 27 | KC | 15 | — | 72 | 58 | — | — | — | 0.0 | 0.0 | — | 1 | 0 | — | — | — | 6.5 |
| 1995 | 28 | KC | 16 | — | 72 | 64 | — | — | — | 1.0 | 1.0 | — | 0 | 0 | — | — | — | 5.8 |
| 1996 | 29 | KC | 16 | — | 76 | 64 | — | — | — | 0.0 | 0.0 | 1 | 1 | 0 | — | — | — | 6.6 |
| 1997 | 30 | KC | 16 | — | 7 | 7 | — | — | — | 0.0 | 0.0 | — | 0 | 0 | — | — | — | 3.8 |
| 1999 | 32 | LAC | 4 | — | 7 | 6 | 1 | 1 | 1 | 1.0 | 3.0 | 1 | 1 | 0 | 1 | 0 | 0 | 2.7 |
| Career | 113 | 439 | 321 | 1 | 1 | 1 | — | — | 5 | 13 | 2 | 1 | 0 | 0 | 51.4 |
KV-H Anatomy
KV-H 61 · Strong StarterA strong starter career by KV-H: a well-rounded profile that scores 61 of 100, era-normalized against tackles/g peers across 8 scored seasons.
59
Sustained
career value
×.6
64
Peak
best 3 seasons
×.4
×1
Longevity
career length
Blend 61 × longevity 1 = KV-H 61· confidence 94%
What builds the career mark of 59
On-field 40.3
Availability 18.7
On-field production Staying available
Season-by-season quality (era-relative tackles/g)
1991bestavg 561999
All-Time Standing
how this career measures against the all-time greats at the position3
Depth
of 100
Reached 3% of the all-time Sacks leader — a rotational/depth all-time profile at the position.
3% of the all-time Sacks leader3
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%.
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+).
College stats are not imported for this profile yet.
StatVault has the verified college attribution (TCU), but no parsed college box-score table is present in this profile artifact. The section stays here so every profile has a consistent college-stats landing point without fabricating unavailable rows.
Reference Graph
Career teammates and draft class, derived from year-by-year rosters — every name is linked.
Top Teammates
Derrick ThomasOLB7yKimble AndersRB7yJoe PhillipsNT6yNeil SmithDE6yDale CarterCB6yPellom McDanielsDE5yKeith CashTE5yMarcus AllenRB4yGreg ManuskyLB4yLouie AguiarP4yTodd McNairRB4yVaughn BookerDE4yDonnell BennettFB4yJ.J. BirdenWR4yDerrick WalkerTE4yDanan HughesWR4yGreg HillRB4yChris PennWR4yLake DawsonWR4yBryan BarkerP3yJames HastyDB3yJonathan HayesTE3yRich GannonQB3yTony RichardsonFB3y
Franchise Succession
the room, before and afterTracy inherited the Kansas City Chiefs LB room from Lonnie Marts (1991–1993), and handed it to Greg Manusky (1994–1999).
Similar Players
Statistical + physical similarity across every player in the database, position-relevant (0–100%).
Movementderived from season history
- 1999team change
Joined LAC (from KC)
- 1999final season
Last recorded season with LAC
- 1991signing
Entered the NFL with KC
Athletic & Unique Profile
verified measurements and curated source-tagged facts6'1" / 250 lb
Frame
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 8-season peers. See all →
61
peak 64
Season Report Cards· KV-H era-normalized per season
B1991
B1992
B1993
B1994
B1995
B1996
C1997
F1999
Availability
Career durability — games played vs. scheduled, across 8 seasons.
88%
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 |
|---|---|---|---|---|
| 1991 | 56 | 3.7 | 64+8 | 3.8 |
| 1992 | 69 | 4.6 | 76+7 | 4.5 |
| 1993 | 80 | 5 | 77-3 | 4.5 |
| 1994 | 72 | 4.8 | 72 | 4.2 |
| 1995 | 72 | 4.5 | 70-2 | 4.1 |
| 1996 | 76 | 4.8 | 80+4 | 4.7 |
| 1997 | 7 | 0.4 | 16+9 | 0.9 |
| 1999 | 7 | 1.8 | 26+19 | 1.5 |
Data: nflverse:players, nflverse:player_stats_def, wikipedia:season-stats (CC-BY-SA, facts-only), nfl.com:official-stats (facts-only reference), espn.com:stats-api (facts-only reference), espn.com:stats-api (games-played, facts-only reference) · multi-source verified via the StatVault Oracle · updated 6/18/2026
Career Value · VORP
98 career value over replacement — #1164 all-time of 4,642. 12.3/season above a replacement-level LB.
Fan Rating
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