Marion Motley is a Hall of Fame running back whose career earned a solid career value score of 69 in the Knox value model. Motley's enshrinement reflects a career that consistently placed him among the elite of his generation.

FBPIThistorical

Marion Motley

★ HALL OF FAMETop 11% all-time RBsIron Man📈 Late Developer · 1950

BornJun 5, 1920

Age106

CollegeSouth Carolina State Nevada See College Stats

Rookie yr1946

All-Time Standing

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

Depth

of 100

Reached 26% of the all-time Rushing Yards leader — a rotational/depth all-time profile at the position.

26% of the all-time Rushing Yards leader26

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 Coverage

Career Value · VORP

105 career value over replacement — #1083 all-time of 4,695. 15/season above a replacement-level RB.

Fan Rating

Rate Marion Motley — All-Time

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Compare Marion Motley vs Player Report data error

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

Defensive StatsNot available for this player

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.

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.

nflverse — CC-BY 4.0 — attribution required
Wikipedia — Facts extracted under Feist v. Rural Telephone; courtesy CC-BY-SA attribution
NFL.com — Official league site; facts extracted under Feist, courtesy attribution

Methodology · Trust Center

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.

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.

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.

Franchise Succession

the room, before and after

Marion opened the Cleveland Browns RB lineage the corpus knows, and handed it to Jim Brown (1957–1965).

Marion Motley 1946–1953Jim Brown 1957–1965Leroy Kelly 1964–1973Cleo Miller 1975–1982Earnest Byner 1984–1995Kevin Mack 1985–1993Leroy Hoard 1990–1995Nick Chubb 2018–2024

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.

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 7-season peers. See all →

peak 72

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

C+1946

B1947

B+1948

B1949

B+1950

C+1951

B1952

Availability

Career durability — games played vs. scheduled, across 7 seasons.

98%

19461952

Durability IQ

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

Iron

Canton Monitor · HOF

Enshrined in the Pro Football Hall of Fame. See all →

✓

Enshrined

What carries the case

Era Quality (KV-H) 54.9%League Leads 45.1%

Monitor score 26.6 · components sum to the score (All-Pro ×12 · Pro Bowl ×3 · League Lead ×4 · ranks/era/longevity weighted).

Career Fingerprint

Statistical profile across 5 dimensions

Overall

Longevity85

Peak72

Accolades10

Consistency50

Per-Snap50

Season	Actual Rush Yds	Rush Yds/G	→ 2025 Rush Yds	→ 2025 /G
1946	601	46.2	453-148	26.7
1947	889	63.5	848-41	49.9
1948	964	68.9	1,063+99	62.5
1949	570	51.8	837+267	49.2
1950	810	67.5	1,244+434	73.2
1951	273	24.8	367+94	21.6
1952	444	37	666+222	39.2

Marion Motley

All-Time Standing

Where this data comes from

Career Aging Trajectory

From Scrimmage · Career

College Stats

Reference Graph

Top Teammates

Franchise Succession

Similar Players

Movementderived from season history

Knox

Era Translator