Darren Sproles NFL Stats, Career Profile & VAL | StatVault
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Darren Sproles is a career quality starter — a running back whose body of work places Sproles in the top half of all players at the position historically. The Knox model values sustained contribution over flash, and Sproles's career arc reflects exactly that kind of reliable professional-grade performance.
how this career measures against the all-time greats at the position
36
Depth
of 100
Reached 36% of the all-time Receptions leader — a rotational/depth all-time profile at the position.
36% of the all-time Receptions leader36
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: 91%.
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 StatsNot available for this player
College StatsCollege attribution is present, but this profile artifact does not yet carry a parsed college stat table.
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.
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 running backs, 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
Combine · 2005
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
Major career thresholds crossed, derived from regular-season totals (1999+).
20101K career rushing yards
20101K career receiving yards
2010100 career receptions
2012250 career receptions
201225 career receiving TDs
20133K career receiving yards
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
11 playoff games
Rushing
Att76Yds298TD4Y/A3.9TD%5.31D171D%22.4
Receiving
Tgt62
College Stats
Kansas StateCollege listed; stat table pending import
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Kansas State), 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
5'6" / 190 lb
Frame
187 lb at 4.47s
Size-speed
33" vert / 105" broad
Explosion
23 reps
Bench power
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 →
58
peak 60
Season Report Cards· KV-H era-normalized per season
D2005
C2007
C+2008
C+2009
C+2010
B2011
C+2012
C+2013
C+2014
C+2015
C+2016
D2018
F2019
Era Translator
Rush Yds translated to the 2025 NFL — each season's standing among its own-era peers, projected onto 2025's scoring environment. Modern-era (1999+) coverage.
Season
Actual Rush Yds
Rush Yds/G
→ 2025 Rush Yds
→ 2025 /G
2005
50
7.1
219+169
12.9
2007
164
18.2
318+154
18.7
2008
330
22
373+43
21.9
2009
343
21.4
365+22
21.5
2010
270
16.9
328+58
19.3
2011
604
37.8
685+81
40.3
2012
244
18.8
390+146
23
2013
220
14.7
300+80
17.6
2014
329
21.9
417+88
24.5
2015
317
19.8
339+22
20
2016
438
29.2
508+70
29.9
2018
120
20
341+221
20.1
2019
66
11
172+106
10.1
Data: nflverse:players, nflverse:player_stats, nflverse:player_stats_def, nflverse:snap_counts, nflverse:combine, nflverse:draft_picks, nflverse:injuries · multi-source verified via the StatVault Oracle · updated 8/31/2026
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 RBs aging curve. Group peak age: 21. Source: StatVault KV-H era (1999+).
Low · 2th pct
Pos 2thAll 15thClass Pos 2thClass All 18th
23 reps
Bench
Above avg · 74th pct
Pos 74thAll 62thClass Pos 76thClass All 59th
6.96s
3-Cone
Above avg · 72th pct
Pos 72thAll 76thClass Pos 82thClass All 84th
3.96s
Shuttle
Elite · 98th pct
Pos 98thAll 98thClass Pos 97thClass All 88th
2016
3K career rushing yards
2016500 career receptions
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.
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.
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.
