Alan Ball
Height6'2"
Weight195 lb
BornMar 29, 1985
Age41
CollegeIllinoisSee College Stats
ConferenceBig Ten
Rookie yr2007
Draft2007 Β· Rd 7, Pick 237 Β· DAL
A defensive back with a middle-tier career β a rotational or backup contributor who filled their role reliably.
Career Value Β· VORP
VORP 23 Β· #2953 Β· Role PlayerWorth 23 points of value above a freely-available replacement cornerback β top 65% of all 4,642 ranked at the position. 3 of 7 seasons cleared the replacement bar, by +7.7 on average.See board β
Seasons above replacement
3 cleared
4 replaced
Beat replacement (adds to VORP) Below it β adds 0, never a debit
49
Replacement
the KC-H bar
β
3
Seasons over
cleared the bar
Γ
+7.7
Avg surplus
peak +11
3 seasons Γ ~7.7 surplus β VORP 23
Combined Season Grid
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at onceβno tab hopping.
2 grids split in one view
| Season | Age | Team | G | GS | Defense | Snap Counts | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | Off | Off% | Def | Def% | ST | ST% | |||||
| 2007 | β | DAL | 1 | β | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | β | β | β | β | β | β |
| 2008 | β | DAL | 4 | β | 4 | 2 | 2 | 0 | 0 | 0.0 | 0.0 | 0 | 1 | 0 | β | 0 | 0 | β | β | β | β | β | β |
| 2009 | β | DAL | 10 | β | 17 | 14 | 3 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | β | β | β | β | β | β |
| 2010 | β | DAL | 16 | β | 42 | 37 | 5 | 0 | 1 | 0.5 | 1.5 | 2 | 4 | 1 | β | 0 | 0 | β | β | β | β | β | β |
| 2011 | β | DAL | 12 | β | 31 | 25 | 6 | 1 | 0 | 0.0 | 1.0 | 1 | 6 | 0 | β | 0 | 0 | β | β | β | β | β | β |
| 2012 | β | HOU | 3 | β | 8 | 7 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | β | β | β | β | β | β |
| 2013 | β | JAX | 15 | β | 46 | 40 | 6 | 0 | 0 | 0.0 | 0.0 | 2 | 14 | 0 | β | 0 | 0 | β | 0.0% | 1,006 | 95.7% | 19 | 7.9% |
| 2014 | β | JAX | 7 | β | 22 | 18 | 4 | 1 | 0 | 0.0 | 1.0 | 1 | 3 | 0 | β | 0 | 0 | β | 0.0% | 499 | 97.6% | 26 | 19.0% |
| 2015 | β | CHI | 7 | β | 18 | 13 | 5 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | β | 0.0% | 248 | 26.7% | 59 | 14.4% |
| Career | β | 75 | β | 190 | 158 | 32 | 2 | 1 | 0.5 | 3.5 | 6 | 37 | 1 | β | 0 | 0 | β | 0.0% | 1,753 | 73.3% | 104 | 13.8% | |
Defense
| Season | Age | Team | G | GS | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2007 | 22 | DAL | 1 | β | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | β |
| 2008 | 23 | DAL | 4 | β | 4 | 2 | 2 | 0 | 0 | 0.0 | 0.0 | 0 | 1 | 0 | β | 0 | 0 | 1.2 |
| 2009 | 24 | DAL | 10 | β | 17 | 14 | 3 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | 3.1 |
| 2010 | 25 | DAL | 16 | β | 42 | 37 | 5 | 0 | 1 | 0.5 | 1.5 | 2 | 4 | 1 | β | 0 | 0 | 7.1 |
| 2011 | 26 | DAL | 12 | β | 31 | 25 | 6 | 1 | 0 | 0.0 | 1.0 | 1 | 6 | 0 | β | 0 | 0 | 4.9 |
| 2012 | 27 | HOU | 3 | β | 8 | 7 | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | β |
| 2013 | 28 | JAX | 15 | 14* | 46 | 40 | 6 | 0 | 0 | 0.0 | 0.0 | 2 | 14 | 0 | β | 0 | 0 | 8.6 |
| 2014 | 29 | JAX | 7 | 7* | 22 | 18 | 4 | 1 | 0 | 0.0 | 1.0 | 1 | 3 | 0 | β | 0 | 0 | 3.4 |
| 2015 | 30 | CHI | 7 | 0* | 18 | 13 | 5 | 0 | 0 | 0.0 | 0.0 | 0 | 3 | 0 | β | 0 | 0 | 2.6 |
| Career | 75 | 21* | 190 | 158 | 32 | 2 | 1 | β | β | 6 | 37 | 1 | β | 0 | 0 | 30.9 |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
Snap Counts
| Season | Age | Team | G | GS | Off | Off% | Def | Def% | ST | ST% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | 28 | JAX | 15 | 14* | β | 0.0% | 1,006 | 95.7% | 19 | 7.9% |
| 2014 | 29 | JAX | 7 | 7* | β | 0.0% | 499 | 97.6% | 26 | 19.0% |
| 2015 | 30 | CHI | 15 | 0* | β | 0.0% | 248 | 26.7% | 59 | 14.4% |
| Career | 37 | 21* | β | β | 1,753 | β | 104 | β |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
KV-H Anatomy
KV-H 52 Β· SolidA solid career by KV-H: a peak-driven profile that scores 52 of 100, era-normalized against int/g peers across 7 scored seasons.
48
Sustained
career value
Γ.6
57
Peak
best 3 seasons
Γ.4
Γ1
Longevity
career length
Blend 51.6 Γ longevity 1 = KV-H 52Β· confidence 89%
What builds the career mark of 48
On-field 33.7
Availability 14.3
On-field production Staying available
Season-by-season quality (era-relative int/g)
2008bestavg 432015
All-Time Standing
how this career measures against the all-time greats at the position3
Depth
of 100
Reached 3% of the all-time Interceptions leader β a rotational/depth all-time profile at the position.
3% of the all-time Interceptions 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: 89%.
Per-Snap Impact
Defensive Backs Β· proprietary Β· 2012+38
Rotational
SIS
Disruption/1001.369Snap share73.3%Def snaps1,753ConsistentCV 0.19
Production per snap β the box score normalized by opportunity. SIS is z-scored within defensive backs, shrinkage-regularized so small samples don't spike, over the NFL snap-count era (2012+).
Career Aging Trajectory
vs. position group average Β· KV-H basisAmber = this player (normalized to own peak). Indigo = average defensive backs aging curve. Group peak age: 21. Source: StatVault KV-H era (1999+).
Postseason Career
1 playoff gameDefense
Tkl1Solo1
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Illinois), 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
Bradie JamesILB6yJay RatliffDE6yJason WittenTE5yJason WhittleG5yTerence NewmanCB5yDeMarcus WareOLB5yMartellus BennettTE5yTony RomoQB5yJason HatcherDE5yMiles AustinWR5yAnthony SpencerLB5yMat McBriarP5yOrlando ScandrickDB4yMarion BarberRB4yMike JenkinsDB4yStephen BowenDE4yFelix JonesRB4yNick FolkK3yKeith BrookingMLB3yRoy WilliamsWR3yKen HamlinDB3yGerald SensabaughFS3yPatrick CraytonWR3yTashard ChoiceRB3y
2007 Draft ClassΒ· this player went #237
#225Brandon FieldsP#226C.J. WilsonDB#227Dallas BakerWR#228DeShawn WynnRB#229John BroussardWR#232Steve VallosC#234Syndric SteptoeWR#235Chansi StuckeyWR#239C.J. Ah YouDT#240Brandon SilerILB#242Keyunta DawsonDE#243Clark HarrisLS#244Jason SnellingFB#245Marcus HamiltonDB#246Kenneth DarbyRB#249Derek StanleyWR
Franchise Succession
the room, before and afterAlan inherited the Dallas Cowboys DB room from Ken Hamlin (2007β2009), and handed it to Mike Jenkins (2008β2012).
Similar Players
Statistical + physical similarity across every player in the database, position-relevant (0β100%).
Movementderived from season history
- 2015team change
Joined CHI (from JAX)
- 2015final season
Last recorded season with CHI
- 2013team change
Joined JAX (from HOU)
- 2012team change
Joined HOU (from DAL)
- 2007draft
Drafted by DAL β Round 7, Pick 237
Athletic & Unique Profile
verified measurements and curated source-tagged facts6'2" / 195 lb
Frame
Injury History
4 career games missed (Out)From nflverse weekly injury reports Β· coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2015 | CHI | 0 | W4QuestionableΒ· GroinW5QuestionableΒ· Groin |
| 2014 | JAX | 1 | W2QuestionableΒ· AbdomenW8OutΒ· Biceps |
| 2013 | JAX | 0 | W2QuestionableΒ· GroinW3QuestionableΒ· Groin |
| 2012 | HOU | 3 | W13QuestionableΒ· FootW14QuestionableΒ· FootW15OutΒ· FootW16OutΒ· FootW17OutΒ· Foot |
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 7-season peers. See all β
52
peak 57
Season Report CardsΒ· KV-H era-normalized per season
F2008
D2009
B2010
C+2011
B2013
C2014
D2015
Availability
Career durability β games played vs. scheduled, across 9 seasons.
70%
Era Translator
INT 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 INT | INT/G | β 2025 INT | β 2025 /G |
|---|---|---|---|---|
| 2008 | 0 | 0 | 0 | 0 |
| 2009 | 0 | 0 | 0 | 0 |
| 2010 | 2 | 0.1 | 1-1 | 0.1 |
| 2011 | 1 | 0.1 | 1 | 0 |
| 2013 | 2 | 0.1 | 1-1 | 0.1 |
| 2014 | 1 | 0.1 | 2+1 | 0.1 |
| 2015 | 0 | 0 | 0 | 0 |
Data: nflverse:players, nflverse:player_stats_def, nflverse:snap_counts, nflverse:draft_picks, nflverse:injuries Β· multi-source verified via the StatVault Oracle Β· updated 6/18/2026
Career Value Β· VORP
23 career value over replacement β #2953 all-time of 4,642. 3.3/season above a replacement-level CB.
Draft OutcomeSteal β
Pick #237 (Rd 7) Β· DAL Β· 2007 Β· +29.2 vs expected KV-H
52actual
22.8 expected Β· Ξ+29.2
Fan Rating
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