Byron Marshall
Role Player
A running back who contributed in a defined role. Their developmental reflects a career built on specific contributions rather than volume.
Combined Season Grid
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at once—no tab hopping.
4 grids split in one view
| Season | Age | Team | G | GS | Rushing | Receiving | Snap Counts | Advanced (EPA) | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Att | Yds | TD | Y/A | TD% | 1D | 1D% | Fmb | Tgt | Rec | Yds | TD | Ctch% | Y/R | Y/Tgt | AirYd/T | 1D | Off | Off% | Def | Def% | ST | ST% | Pass EPA | Rush EPA | Rec EPA | Pass AirYd | Rec AirYd | |||||
| 2016 | — | PHI | 2 | — | 19 | 64 | 0 | 3.4 | 0.0 | 5 | 26.3 | 0 | 5 | 3 | 10 | 0 | 60.0% | 3.3 | 2.0 | — | 1 | 75 | 31.0% | — | 0.0% | 18 | 21.3% | — | — | — | — | — |
| 2016 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | -2.6 | -2.8 | 0 | 2 |
| 2017 | — | WAS | 3 | — | 9 | 32 | 0 | 3.6 | 0.0 | 1 | 11.1 | 0 | 8 | 6 | 36 | 0 | 75.0% | 6.0 | 4.5 | — | 0 | 50 | 25.7% | — | 0.0% | 34 | 28.3% | — | — | — | — | — |
| 2017 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | -2.3 | -9.2 | 0 | -15 |
| 2018 | — | WAS | 4 | — | 3 | 9 | 0 | 3.0 | 0.0 | 0 | 0.0 | 0 | 6 | 4 | 30 | 0 | 66.7% | 7.5 | 5.0 | — | 1 | 47 | 11.8% | — | 0.0% | 80 | 49.8% | — | — | — | — | — |
| 2018 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | -0.6 | 1.2 | 0 | 10 |
| Career | — | 9 | — | 31 | 105 | 0 | 3.4 | 0.0 | 6 | 19.4 | 0 | 19 | 13 | 76 | 0 | 68.4% | 5.8 | 4.0 | — | 2 | 172 | 22.8% | — | 0.0% | 132 | 33.1% | — | -5.5 | -10.9 | 0 | -3 | |
Career EPA-16.4·-6 rushing · -11 receiving·-5.5/season
Rushing
| Season | Age | Team | G | GS | Att | Yds | TD | Y/A | TD% | 1D | 1D% | Fmb | VAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | 22 | PHI | 2 | — | 19 | 64 | 0 | 3.4 | 0.0 | 5 | 26.3 | 0 | — |
| 2017 | 23 | WAS | 3 | 0* | 9 | 32 | 0 | 3.6 | 0.0 | 1 | 11.1 | 0 | — |
| 2018 | 24 | WAS | 4 | 0* | 3 | 9 | 0 | 3.0 | 0.0 | 0 | 0.0 | 0 | 1.5 |
| Career | 9 | 31 | 105 | 0 | 3.4 | — | 6 | — | 0 | 1.5 |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Receiving
| Season | Age | Team | G | GS | Tgt | Rec | Yds | TD | Ctch% | Y/R | Y/Tgt | AirYd/T | 1D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | 22 | PHI | 2 | — | 5 | 3 | 10 | 0 | 60.0% | 3.3 | 2.0 | — | 1 |
| 2017 | 23 | WAS | 3 | 0* | 8 | 6 | 36 | 0 | 75.0% | 6.0 | 4.5 | — | 0 |
| 2018 | 24 | WAS | 4 | 0* | 6 | 4 | 30 | 0 | 66.7% | 7.5 | 5.0 | — | 1 |
| Career | 9 | 19 | 13 | 76 | 0 | 68.4% | 5.8 | 4.0 | — | 2 |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Snap Counts
| Season | Age | Team | G | GS | Off | Off% | Def | Def% | ST | ST% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | 22 | PHI | 3 | — | 75 | 31.0% | — | 0.0% | 18 | 21.3% |
| 2017 | 23 | WAS | 4 | 0* | 50 | 25.7% | — | 0.0% | 34 | 28.3% |
| 2018 | 24 | WAS | 6 | 0* | 47 | 11.8% | — | 0.0% | 80 | 49.8% |
| Career | 13 | 172 | — | — | — | 132 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Advanced (EPA)
| Season | Age | Team | G | GS | Pass EPA | Rush EPA | Rec EPA | Pass AirYd | Rec AirYd |
|---|---|---|---|---|---|---|---|---|---|
| 2016 | 22 | — | — | — | — | -2.6 | -2.8 | 0 | 2 |
| 2017 | 23 | — | — | 0* | — | -2.3 | -9.2 | 0 | -15 |
| 2018 | 24 | — | — | 0* | — | -0.6 | 1.2 | 0 | 10 |
| Career | — | — | — | 0 | -3 |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Advanced Rushing (2018+)
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
Advanced Receiving (2018+)
| Season | Age | Team | G | GS | ADOT | YBC/R | YAC/R | BrkTkl | Drops | Drop% | 1D | TgtRate |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 24 | WAS | 6 | 0* | 1.7 | 0.5 | 7.0 | 0 | 0 | 0.0 | 1 | 78.5 |
| Career | 6 | — | — | — | 0 | 0 | — | 1 | — |
* GS not available from free sources — SG* estimated from snap share (nflverse 2012+)
KV-H Anatomy
KV-H 12 · Depth / RotationalA depth / rotational career by KV-H: a remarkably steady profile that scores 12 of 100, era-normalized against rush yds/g peers across 1 scored season, with a short career trimming the score.
17
Sustained
career value
×.6
17
Peak
best 3 seasons
×.4
×0.72
Longevity
career length
Blend 17 × longevity 0.72 = KV-H 12· confidence 50%
What builds the career mark of 17
On-field 14.4
On-field production Staying available
Season-by-season quality (era-relative rush yds/g)
2018bestavg 172018
All-Time Standing
how this career measures against the all-time greats at the position6
Depth
of 100
Reached 1% of the all-time Receptions leader — a rotational/depth all-time profile at the position.
1% of the all-time Receptions leader1
0 categories ≥25% of the all-time leader0
-5.48 EPA/season over 3 seasons48
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: 89%.
Per-Snap Impact
Running Backs · proprietary · 2012+—
below snap floor
Yards/snap1.052Touch rate0.291EPA/snap-0.096Snap share22.8%Off snaps172Emerging
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+).
Combine · 2016
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
4.42s
40-Yard
Strong · 86th pct
Pos 86thAll 90thClass Pos 94thClass All 96th
17 reps
Bench
Below avg · 25th pct
Pos 25thAll 27thClass Pos 30thClass All 36th
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Oregon), 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
Tress WayP2yPreston SmithDE2yVernon DavisTE2yMorgan MosesOT2yRyan KerriganDE2yTrent WilliamsOT2yBrandon ScherffG2yJamison CrowderWR2yJonathan AllenDE2yD.J. SwearingerFS2yDustin HopkinsK2ySamaje PerineRB2yStacy McGeeDT2yNick SundbergLS2yFabian MoreauCB2yMason FosterILB2yZach BrownOLB2yTy NsekheOT2yMark SanchezQB2yMatthew IoannidisDT2yTony BergstromG2yJordan ReedTE2yChase RoullierC2yJeremy SprinkleTE2y
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 WAS
- 2017team change
Joined WAS (from PHI)
- 2016signing
Entered the NFL with PHI
Athletic & Unique Profile
verified measurements and curated source-tagged facts5'9" / 215 lb
Frame
201 lb at 4.42s
Size-speed
17 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 1-season peers. See all →
12
peak 17
Availability
Career durability — games played vs. scheduled, across 3 seasons.
27%
20162018
2016 · cause not documented · 19%2017 · cause not documented · 25%2018 · cause not documented · 38%
Era Translator
Rush Yds 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 Rush Yds | Rush Yds/G | → 2025 Rush Yds | → 2025 /G |
|---|---|---|---|---|
| 2018 | 9 | 2.3 | 6-3 | 0.3 |
Data: nflverse:players, nflverse:player_stats, nflverse:snap_counts, nflverse:combine, nflverse:advanced-epa (CC-BY 4.0) · multi-source verified via the StatVault Oracle · updated 6/18/2026
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