Also in other sports:nbaJason Williams (PG · 2002–2011), nhlJason Williams (C · 2001–2012).

LBTB#52ACT

Jason Williams

Height6'1"

Weight245 lb

BornApr 23, 1986

Age40

CollegeWestern Illinois See College Stats

Rookie yr2009

Draft2009 · Rd 3, Pick 69 · DAL

Encyclopedia Coverage6/8 data layers

StatVault aggregates multiple open-licensed and proprietary sources into a single profile. The depth indicator above shows which layers are available for this player.

Bio & DraftBirth date, height/weight, draft round/pick, college — sourced from nflverse players.csv (CC-BY 4.0). Covers all NFL eras.

Season Stats (1999–present)Week-by-week box scores aggregated to season totals: passing, rushing, receiving, defense. Source: nflverse player_stats. Counting stats are exact; rates are derived.

Advanced (EPA, 1999–present)Not available for this player

Snap Counts (2012–present)Offensive, defensive, and special-teams snap counts with team-share percentages. Essential for OL and situational players. Source: nflverse snap_counts.

Fan Rating

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Compare Jason Williams vs Player Report data error

Defensive StatsMaterial defensive production only: playmaking stats, 10+ tackles, or 50+ defensive snaps. Source: nflverse player_stats and snap_counts.

College StatsCollege attribution is present, but this profile artifact does not yet carry a parsed college stat table.

NFL Combine / Pro DayNot available for this player

Proprietary LayersKV-H (Knox Value-Historical) — era-normalized career rating 0–100 calibrated within position group (1999+ coverage). SIS (Snap Impact Score, 2012+) — per-snap production z-scored within position. VORP — value over replacement player. Durability IQ — games-played percentile adjusted for era.

Pre-1999 players have bio + draft data but counting stats are not available from any freely-licensed source. Players with ★ Career Only see verified career aggregates from nflverse draft_picks.

Per-Snap Impact

Linebackers · proprietary · 2012+

—

below snap floor

Disruption / 100 snaps:0See leaderboard →

Disruption/1000Snap share0%Def snaps36Emerging

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+).

Understanding These Stats

Defense

Tkl / Solo / Ast — Combined tackles (Solo + ½ Assist). Solo = unassisted. Ast = helped by a teammate.

TFL — Tackles for loss — stops made behind the line of scrimmage (run stuffs + QB contain).

QBHits — QB hits — any legal contact on the quarterback, including but beyond sacks (hurries that land).

Sk — Sacks — tackled the QB behind the line for a loss. Half-sacks shared between defenders.

Dis — Disruption plays = sacks + QB hits + TFL. The composite pass-rush / run-stop impact stat for one season. Elite pass rushers post 30+ disruption plays per season.

Int — Interceptions caught by this defender.

PD — Passes defended — deflections and breakups.

FF / FR — Forced fumbles (stripped or jarred loose). Fumble Recoveries.

TD — Defensive touchdowns — picks, fumble returns, safeties returned.

Sfty — Safeties — tackled the ball carrier in their own end zone.

Snap Counts (2012–present)

Off / Off% — Offensive snaps played and share of team total. The most reliable usage metric for skill positions and OL.

Def / Def% — Defensive snaps played and share of team total.

ST / ST% — Special-teams snaps played and share of team total.

Proprietary StatVault Metrics

KV-H (Knox Value-Historical) — Era-normalized career rating 0–100 within position group, calibrated so a 50 = average starter and 90+ = all-time great. Covers 1999–present. Built on a 5-year IQR/robust-std era window.

SIS (Snap Impact Score) — Per-snap production z-scored within position group and era (2012+). Measures how much a player produced per opportunity, not raw volume.

VORP (Value Over Replacement) — Sum of max(0, season KV-H − positional replacement level) across a career. Measures career value above the minimum-roster baseline at each position.

Durability IQ — 0–100 score reflecting how many games a player played relative to peers at the same position in the same era. Adjusts for injury-shortened seasons.

Postseason Career

1 playoff game

Snap Counts

ST14ST%67.0%

College Stats

Western IllinoisCollege listed; stat table pending import

College stats are not imported for this profile yet.

StatVault has the verified college attribution (Western 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.

Movementderived from season history

2014final season
Last recorded season with CAR
2010team change
Joined CAR (from DAL)
2009draft
Drafted by DAL — Round 3, Pick 69

Athletic & Unique Profile

verified measurements and curated source-tagged facts

6'1" / 245 lb

Frame

Injury History

2 career games missed (Out)

From nflverse weekly injury reports · coverage begins 2009.

Season	Team	Games Out	Designations
2014	TB	0	W2Questionable· ThighW8Questionable· Hip
2010	CAR	0	W14Questionable· Knee
2009	DAL	2	W1Out· AnkleW2Out· Ankle

Knox

StatVault's proprietary player intelligence, informed by full career data. How Knox works →

Availability

Career durability — games played vs. scheduled, across 4 seasons.

78%

20102014

2010 · backup · 3/16 G2011 · backup · 3/16 G

2013 · cause not documented · 69%

Durability IQ

Composite score across availability, IR frequency, and injury severity. See all →

Durable

Data: nflverse:players, nflverse:player_stats_def, nflverse:snap_counts, nflverse:draft_picks, nflverse:injuries · multi-source verified via the StatVault Oracle · updated 7/31/2026

Career Geography

Journeyman · 3 crestsLeague board →

Wore 3 distinct franchise crests across 5 seasons (2010–2014) — a true nomad. The crest trail:

DAL 2010 CAR 2010–2014 TB 2014