Not to be confused withKyle Williams (OT · 2007–2009), Kyle Williams (WR · 2010–2015) or Kyle Williams (WR · 2025–present).

Kyle Williams is a career quality starter — a pass rusher whose body of work places Williams in the top quarter of all players at the position historically. The Knox model values sustained contribution over flash, and Williams's career arc reflects exactly that kind of reliable professional-grade performance.

DTBUF#95ACT

Kyle Williams

6× Pro BowlTop 11% all-time pass rushersElite PlaymakerTwo-Way ProfileTeam Carrier · #497

Height6'1"

Weight303 lb

Career Value · VORP

194 career value over replacement — #398 all-time of 4,649. 14.9/season above a replacement-level DL.

Draft OutcomeSteal ↑

Pick #134 (Rd 5) · BUF · 2006 · +40.4 vs expected KV-H

71actual

30.6 expected · Δ+40.4

💔+25.7 stolen VORP·1.69 szns lost

Fan Rating

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Compare Kyle Williams vs Player Report data error

ConferenceSoutheastern

Team Carrier Evidence

Ranked #497 of 600 by seasons where high individual production happened on low-win teams. Score aggregates only tracked StatVault categories.

Full board

Total Score

1 qualifying season

2013 BUF·6 team wins#17

Sacks · 11 · score 9

All-Time Standing

how this career measures against the all-time greats at the position

Depth

of 100

Reached 25% of the all-time Sacks leader — a rotational/depth all-time profile at the position.

25% of the all-time Sacks leader25

1 category ≥25% of the all-time leader33

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: 92%.

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.

Per-Snap Impact

Interior D-Line · proprietary · 2012+

Excellent

SIS

Disruption / 100 snaps:3.921See leaderboard →

Disruption/1003.921Snap share74.1%Def snaps4,208ReliableCV 0.27

Production per snap — the box score normalized by opportunity. SIS is z-scored within interior d-line, shrinkage-regularized so small samples don't spike, over the NFL snap-count era (2012+).

Career Aging Trajectory

vs. position group average · KV-H basis

Understanding These Stats

Rushing

Att — Rushing attempts (carries).

Yds — Rushing yards.

TD — Rushing touchdowns.

Y/A — Yards per carry — rushing yards ÷ carries. The core rushing efficiency rate; 4.5+ is solid, 5+ is elite.

TD% — Touchdown rate per carry (TDs ÷ carries × 100) — measures scoring efficiency per touch independent of volume. Red-zone workhorses lead here.

1D — First downs gained on rushing plays.

1D% — First-down conversion rate (first downs ÷ carries × 100) — how often a carry moves the chains. Top RBs convert on 25%+ of attempts.

Fmb — Rushing fumbles lost — the key ball-security stat for running backs. Below 1 per season is elite.

Receiving

Tgt — Targets — how many times the receiver was thrown to, regardless of completion.

Rec — Receptions — catches made.

Yds — Receiving yards.

Postseason Career

1 playoff game

Defense

Tkl1Solo1QBHits1Dis1.0

Snap Counts

Def45Def%75.0%ST4ST%15.0%

College Stats

LSUCollege listed; stat table pending import

College stats are not imported for this profile yet.

StatVault has the verified college attribution (LSU), 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

Fred JacksonRB8y Leodis McKelvinCB8y Chris KelsayDE7y Marcell DareusDT7y

Franchise Succession

the room, before and after

Kyle inherited the Buffalo Bills DL room from Chris Kelsay (2003–2012), and handed it to Marcus Stroud (2008–2010).

Bruce Smith 1985–1999Mike Lodish 1990–1994Phil Hansen 1991–2001Gabe Northern 1996–1999Shawn Price 1996–2001Marcellus Wiley

Similar Players

Statistical + physical similarity across every player in the database, position-relevant (0–100%).

Movementderived from season history

2018final season
Last recorded season with BUF
2006draft
Drafted by BUF — Round 5, Pick 134

Athletic & Unique Profile

verified measurements and curated source-tagged facts

6'1" / 303 lb

Frame

Injury History

10 career games missed (Out)

From nflverse weekly injury reports · coverage begins 2009.

Season	Team	Games Out	Designations
2017	BUF	0	W14Questionable· GroinW16Questionable· Groin
2016	BUF	0	W7Questionable· NeckW14Questionable· BackW15Questionable· Back

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 13-season peers. See all →

peak 75

Season Report Cards· KV-H era-normalized per season

C2006

C+2007

B2008

B2009

B2010

F2011

B2012

A2013

B2014

D2015

B2016

B2017

B2018

Era Translator

Sacks 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 Sacks	Sacks/G	→ 2025 Sacks	→ 2025 /G
2006	0	0	0	0
2007	1.5	0.1	2+0.5	0.1
2008	3.5	0.2	4+0.5	0.2
2009	4	0.3	5+1	0.3
2010	5.5	0.3	6+0.5	0.3
2011	0	0	0	0
2012	5	0.3	5	0.3
2013	10.5	0.7	10-0.5	0.6
2014	5.5	0.4	6+0.5	0.4
2015	1	0.2	3+2	0.2
2016	5	0.3	5	0.3
2017	3	0.2	3	0.2
2018	5	0.3	5	0.3

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

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.

Amber = this player (normalized to own peak). Indigo = average defensive linemen aging curve. Group peak age: 25. Source: StatVault KV-H era (1999+).

TD — Receiving touchdowns.

Ctch% — Catch rate — receptions ÷ targets × 100. Measures how reliably a receiver turns opportunities into gains. 70%+ is elite.

Y/R — Yards per reception — receiving yards ÷ receptions. Measures big-play ability; 15+ is elite for WRs.

Y/Tgt — Yards per target — receiving yards ÷ targets. The single most complete receiving efficiency metric: accounts for both drops and incomplete targets. Elite receivers post 8+ yards per target.

AirYd/T — Air yards per target — average depth of route at time of target. High values indicate a deep threat role; low values indicate a slot/check-down role.

1D — First downs gained on receiving plays.

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.

Kyle Williams 2006–2018

The room is reconstructed from arrival order among durable members (≥4 seasons with the club) at the player’s position group — a lineage by arrival, not a week-by-week depth chart. Distinct from the league-wide positional GOAT torch.