London Fletcher NFL Stats, Career Profile & VAL | StatVault
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London Fletcher ranks in the all-time elite tier for linebackers — a career that places Fletcher in the top 1% of all players at the position. The Knox value model assigns Fletcher a career score of 82, reflecting sustained impact that most players at the position never approach.
how this career measures against the all-time greats at the position
29
Depth
of 100
Reached 28% of the all-time Interceptions leader — a rotational/depth all-time profile at the position.
28% of the all-time Interceptions leader28
1 category ≥25% of the all-time leader33
A 0–100 scale where 100 = matched the all-time leader at 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: 90%.
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.
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 Layers
Where this data comes from
Modern-era stats (1999+) come from nflverse's open data releases. Pre-1999 seasons are backfilled additively from Wikipedia and NFL.com's own official season pages — never from rights-restricted sources.
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+).
Career Aging Trajectory
vs. position group average · KV-H basis
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.
College stats are not imported for this profile yet.
StatVault has the verified college attribution (John Carroll University; St. Francis PA), 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.
verified measurements and curated source-tagged facts
5'10" / 242 lb
Frame
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 15-season peers. See all →
82
Era Translator
Tackles translated to the 2025 NFL — each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
KV-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 linebackers aging curve. Group peak age: 32. Source: StatVault KV-H era (1999+).
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.
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.
