Jeff Ulbrich is a career quality starter β a linebacker whose body of work places Ulbrich in the top quarter of all players at the position historically. The Knox model values sustained contribution over flash, and Ulbrich's career arc reflects exactly that kind of reliable professional-grade performance.
Jeff Ulbrich
A quality linebacker with a top 30% among starters β a legitimate starter who contributed meaningfully across their career.
Career Value Β· VORP
VORP 61 Β· #1809 Β· Above AverageWorth 61 points of value above a freely-available replacement linebacker β top 40% of all 4,642 ranked at the position. 5 of 8 seasons cleared the replacement bar, by +12.2 on average.See board β
Seasons above replacement
5 cleared
3 replaced
Beat replacement (adds to VORP) Below it β adds 0, never a debit
47
Replacement
the KC-H bar
β
5
Seasons over
cleared the bar
Γ
+12.2
Avg surplus
peak +18
5 seasons Γ ~12.2 surplus β VORP 61
Combined Season Grid
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at onceβno 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 | |||||
| 2000 | β | SF | 1 | β | 1 | 0 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2001 | β | SF | 14 | β | 72 | 48 | 24 | 6 | 1 | 0.5 | 7.5 | 0 | 1 | 0 | β | 0 | 0 |
| 2002 | β | SF | 14 | β | 54 | 32 | 22 | 3 | 2 | 1.5 | 6.5 | 0 | 0 | 1 | β | 0 | 0 |
| 2003 | β | SF | 15 | β | 68 | 47 | 21 | 0 | 0 | 3.5 | 3.5 | 1 | 5 | 1 | 1 | 0 | 1 |
| 2004 | β | SF | 16 | β | 81 | 61 | 20 | 0 | 0 | 0.5 | 0.5 | 1 | 3 | 1 | β | 0 | 0 |
| 2005 | β | SF | 5 | β | 40 | 30 | 10 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 1 | β | 0 | 0 |
| 2006 | β | SF | 15 | β | 51 | 33 | 18 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2007 | β | SF | 7 | β | 29 | 19 | 10 | 0 | 0 | 0.0 | 0.0 | 0 | 1 | 0 | β | 0 | 0 |
| 2008 | β | SF | 5 | β | 9 | 8 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| Career | β | 92 | β | 405 | 278 | 127 | 9 | 3 | 6.0 | 18.0 | 2 | 13 | 4 | 1 | 0 | 1 | |
Defense
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | 23 | SF | 1 | β | 1 | 0 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | β |
| 2001 | 24 | SF | 14 | β | 72 | 48 | 24 | 6 | 1 | 0.5 | 7.5 | 0 | 1 | 0 | β | 0 | 0 | 6 |
| 2002 | 25 | SF | 14 | β | 54 | 32 | 22 | 3 | 2 | 1.5 | 6.5 | 0 | 0 | 1 | β | 0 | 0 | 6.5 |
| 2003 | 26 | SF | 15 | β | 68 | 47 | 21 | 0 | 0 | 3.5 | 3.5 | 1 | 5 | 1 | 1 | 0 | 1 | 9.5 |
| 2004 | 27 | SF | 16 | β | 81 | 61 | 20 | 0 | 0 | 0.5 | 0.5 | 1 | 3 | 1 | β | 0 | 0 | 8.9 |
| 2005 | 28 | SF | 5 | β | 40 | 30 | 10 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 1 | β | 0 | 0 | 3.2 |
| 2006 | 29 | SF | 15 | β | 51 | 33 | 18 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | 5.1 |
| 2007 | 30 | SF | 7 | β | 29 | 19 | 10 | 0 | 0 | 0.0 | 0.0 | 0 | 1 | 0 | β | 0 | 0 | 2.7 |
| 2008 | 31 | SF | 5 | β | 9 | 8 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | 1.4 |
| Career | 92 | 405 | 278 | 127 | 9 | 3 | β | β | 2 | 13 | 4 | 1 | 0 | 1 | 43.3 |
KV-H Anatomy
KV-H 58 Β· Strong StarterA strong starter career by KV-H: a peak-driven profile that scores 58 of 100, era-normalized against tackles/g peers across 8 scored seasons.
55
Sustained
career value
Γ.6
62
Peak
best 3 seasons
Γ.4
Γ1
Longevity
career length
Blend 57.8 Γ longevity 1 = KV-H 58Β· confidence 89%
What builds the career mark of 55
On-field 38.8
Availability 16.2
On-field production Staying available
Season-by-season quality (era-relative tackles/g)
2001bestavg 502008
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 β a rotational/depth all-time profile at the position.
3% of the all-time Sacks leader3
0 categories β₯25% of the all-time leader0
A 0β100 scale where 100 = matched the all-time leaderat this position. Built only from visible encyclopedia data β career production vs. the all-time leader, plus efficiency (EPA) and comparable-player confidence β so it's a transparent context score, not a subjective rating. Tiers: Elite β₯ 85 Β· Strong β₯ 65 Β· Solid β₯ 45 Β· Depth < 45. Comparable-player confidence: 92%.
Career Aging Trajectory
vs. position group average Β· 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 Β· 2000
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
4.65s
40-Yard
Above avg Β· 60th pct
Pos 60thAll 50thClass Pos 68thClass All 51th
32"
Vertical
Below avg Β· 25th pct
Pos 25thAll 35thClass Pos 40thClass All 37th
109"
Broad Jump
Low Β· 5th pct
Pos 5thAll 22thClass Pos 7thClass All 31th
24 reps
Bench
Above avg Β· 66th pct
Pos 66thAll 69thClass Pos 75thClass All 70th
7.23s
3-Cone
Below avg Β· 30th pct
Pos 30thAll 43thClass Pos 42thClass All 42th
4.30s
Shuttle
Below avg Β· 48th pct
Pos 48thAll 56thClass Pos 42thClass All 47th
Postseason Career
3 playoff gamesDefense
Tkl15Solo10Ast5TFL1Dis1.0PD1FF1
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Hawaii; San Jose State; Gavilan College), 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 β every name is linked.
Top Teammates
Bryant YoungDT8yDerek M. SmithILB7yJulian PetersonOLB6yFred BeasleyFB6yAhmed PlummerCB6yArnaz BattleWR6yBrandon MooreLB6yTim RattayQB6yAndy LeeP5yAndre CarterDE5yTony ParrishS5yJohn EngelbergerDE5yShawntae SpencerCB5yKevan BarlowRB5yRonnie HeardFS5yKeith LewisDB5yFrank GoreRB4yTerrell OwensWR4yIsaac SopoagaNT4yJeff GarciaQB4yAnthony AdamsDT4yJason WebsterDB4yTai StreetsWR4yRonald FieldsDT4y
2000 Draft ClassΒ· this player went #86
Franchise Succession
the room, before and afterJeff inherited the San Francisco 49ers LB room from Julian Peterson (2000β2005), and handed it to Jamie Winborn (2001β2004).
Similar Players
Statistical + physical similarity across every player in the database, position-relevant (0β100%).
Movementderived from season history
- 2008final season
Last recorded season with SF
- 2000draft
Drafted by SF β Round 3, Pick 86
Athletic & Unique Profile
verified measurements and curated source-tagged facts6'0" / 240 lb
Frame
249 lb at 4.65s
Size-speed
32" vert / 109" broad
Explosion
24 reps
Bench power
Injury History
1 career game missed (Out)From nflverse weekly injury reports Β· coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2009 | SF | 1 | W5OutΒ· Concussion |
Knox
StatVault's proprietary player intelligence, informed by full career data. How Knox works β
Historical Knox Β· KV-H
Era-normalized career quality β z-scored against 8-season peers. See all β
58
peak 62
Season Report CardsΒ· KV-H era-normalized per season
B2001
C+2002
B2003
B2004
C2005
C+2006
C2007
F2008
Availability
Career durability β games played vs. scheduled, across 9 seasons.
71%
Era Translator
Tackles translated to the 2025NFL β each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
| Season | Actual Tackles | Tackles/G | β 2025 Tackles | β 2025 /G |
|---|---|---|---|---|
| 2001 | 72 | 5.1 | 78+6 | 4.6 |
| 2002 | 54 | 3.9 | 49-5 | 2.9 |
| 2003 | 68 | 4.5 | 64-4 | 3.8 |
| 2004 | 81 | 5.1 | 77-4 | 4.5 |
| 2005 | 40 | 8 | 142+102 | 8.4 |
| 2006 | 51 | 3.4 | 40-11 | 2.3 |
| 2007 | 29 | 4.1 | 57+28 | 3.4 |
| 2008 | 9 | 1.8 | 8-1 | 0.5 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:combine, nflverse:draft_picks, nflverse:injuries Β· multi-source verified via the StatVault Oracle Β· updated 6/18/2026
Career Value Β· VORP
61 career value over replacement β #1809 all-time of 4,642. 7.6/season above a replacement-level LB.
Draft OutcomeValue β
Pick #86 (Rd 3) Β· SF Β· 2000 Β· +19.3 vs expected KV-H
58actual
38.7 expected Β· Ξ+19.3
Fan Rating
Rate Jeff Ulbrich β All-Time
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