OTARI#68ACT

Jon Jansen

Height6'6"

Weight306 lb

BornJan 28, 1976

Age50

CollegeMichigan See College Stats

Rookie yr1999

Draft1999 · Rd 2, Pick 37 · WAS

Encyclopedia Coverage5/8 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)Not available for this player

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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.

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.

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.

College Stats

MichiganCollege listed; stat table pending import

College stats are not imported for this profile yet.

StatVault has the verified college attribution (Michigan), 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

2005team change
Joined ARI (from NO)
2005final season
Last recorded season with ARI
2003team change
Joined NO (from ARI)
2002team change
Joined ARI (from NYG)
2000team change
Joined NYG (from DET)
1999draft
Drafted by WAS — Round 2, Pick 37
1999team change
Joined DET (from WAS)

Athletic & Unique Profile

verified measurements and curated source-tagged facts

6'6" / 306 lb

Frame

Knox

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

Availability

Career durability — games played vs. scheduled, across 5 seasons.

14%

19992005

1999 · cause not documented · 6%2000 · cause not documented · 13%2002 · cause not documented · 13%2003 · cause not documented · 19%2005 · cause not documented · 19%

Durability IQ

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

Fragile

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

Career Geography

Journeyman · 9 crestsLeague board →

Wore 9 distinct franchise crests across 7 seasons (1999–2005) — a true nomad. The crest trail:

DET 1999 LAR 2000 NYG 2000–2005 JAX 2002 ARI 2002–2005 NO 2003 PHI 2003 SEA 2003 TB 2005