A running back with a developmental β a rotational or backup contributor who filled their role reliably.
Worth 0 points of value above a freely-available replacement running back β top 98% of all 4,642 ranked at the position. 0 of 8 seasons cleared the replacement bar, by +0 on average.See board β
Seasons above replacement
0 seasons Γ ~0 surplus β VORP 0
The full season-by-season grids, joined on one timeline. Every selected stat family stays visible at onceβno tab hopping.
| Season | Age | Team | G | GS | Rushing | Receiving | Passing | Defense | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Att | Yds | TD | Y/A | TD% | 1D | 1D% | Fmb | Tgt | Rec | Yds | TD | Ctch% | Y/R | Y/Tgt | AirYd/T | 1D | Cmp | Att | Cmp% | Yds | TD | Int | TD% | Int% | Y/A | AdjY/A | TD:INT | Rate | Sk | Tkl | Solo | Ast | TFL | QBHits | Sk | Dis | Int | PD | FF | FR | TD | Sfty | |||||
| 2006 | β | SF | 14 | β | 38 | 116 | 2 | 3.1 | 5.3 | 5 | 13.2 | 0 | 9 | 9 | 47 | 0 | 100.0% | 5.2 | 5.2 | β | 3 | 0 | 1 | 0.0% | 0 | 0 | 0 | 0.0 | 0.0 | 0.0 | 0.0 | β | 39.6 | 0 | β | β | β | β | β | β | β | β | β | β | β | β | β |
| 2007 | β | SF | 10 | β | 26 | 121 | 0 | 4.7 | 0.0 | 7 | 26.9 | 0 | 11 | 11 | 73 | 0 | 100.0% | 6.6 | 6.6 | β | 4 | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β |
| 2008 | β | SF | 10 | β | 19 | 50 | 0 | 2.6 | 0.0 | 5 | 26.3 | 1 | 17 | 17 | 202 | 0 | 100.0% | 11.9 | 11.9 | β | 9 | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β |
| 2008 | β | NYJ | 3 | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2009 | β | SF | 9 | β | 3 | 2 | 0 | 0.7 | 0.0 | 1 | 33.3 | 0 | 11 | 6 | 24 | 0 | 54.5% | 4.0 | 2.2 | β | 1 | β | β | β | β | β | β | β | β | β | β | β | β | β | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2010 | β | SEA | 10 | β | 12 | 77 | 0 | 6.4 | 0.0 | 9 | 75.0 | 0 | 13 | 8 | 37 | 0 | 61.5% | 4.6 | 2.8 | β | 0 | 1 | 1 | 100.0% | 28 | 0 | 0 | 0.0 | 0.0 | 28.0 | 28.0 | β | 118.8 | 0 | 2 | 2 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2011 | β | SEA | 10 | β | 4 | 7 | 0 | 1.8 | 0.0 | 1 | 25.0 | 1 | 14 | 9 | 74 | 1 | 64.3% | 8.2 | 5.3 | β | 4 | β | β | β | β | β | β | β | β | β | β | β | β | β | 1 | 1 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 |
| 2012 | β | SEA | 11 | β | 12 | 49 | 0 | 4.1 | 0.0 | 10 | 83.3 | 0 | 15 | 13 | 126 | 2 | 86.7% | 9.7 | 8.4 | β | 8 | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β |
| 2013 | β | SEA | 4 | β | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0.0 | 0 | 3 | 2 | 27 | 0 | 66.7% | 13.5 | 9.0 | β | 1 | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β | β |
| Career | β | 81 | β | 115 | 422 | 2 | 3.7 | 1.7 | 38 | 33.0 | 2 | 93 | 75 | 610 | 3 | 80.6% | 8.1 | 6.6 | β | 30 | 1 | 2 | 50.0% | 28 | 0 | 0 | 0.0 | 0.0 | 14.0 | 14.0 | β | 95.8 | 0 | 5 | 5 | 0 | 0 | 0 | 0.0 | 0.0 | 0 | 0 | 0 | β | 0 | 0 | |
| Season | Age | Team | G | GS | Att | Yds | TD | Y/A | TD% | 1D | 1D% | Fmb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 23 | SF | 14 | β | 38 | 116 | 2 | 3.1 | 5.3 | 5 | 13.2 | 0 |
| 2007 | 24 | SF | 10 | β | 26 | 121 | 0 | 4.7 | 0.0 | 7 | 26.9 | 0 |
| 2008 | 25 | SF | 10 | β | 19 | 50 | 0 | 2.6 | 0.0 | 5 | 26.3 | 1 |
| 2009 | 26 | SF | 9 | β | 3 | 2 | 0 | 0.7 | 0.0 | 1 | 33.3 | 0 |
| 2010 | 27 | SEA | 10 | β | 12 | 77 | 0 | 6.4 | 0.0 | 9 | 75.0 | 0 |
| 2011 | 28 | SEA | 10 | β | 4 | 7 | 0 | 1.8 | 0.0 | 1 | 25.0 | 1 |
| 2012 | 29 | SEA | 11 | β | 12 | 49 | 0 | 4.1 | 0.0 | 10 | 83.3 | 0 |
| 2013 | 30 | SEA | 4 | 0* | 1 | 0 | 0 | 0.0 | 0.0 | 0 | 0.0 | 0 |
| Career | 78 | 115 | 422 | 2 | 3.7 | β | 38 | β | 2 |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Tgt | Rec | Yds | TD | Ctch% | Y/R | Y/Tgt | AirYd/T | 1D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 23 | SF | 14 | β | 9 | 9 | 47 | 0 | 100.0% | 5.2 | 5.2 | β | 3 |
| 2007 | 24 | SF | 10 | β | 11 | 11 | 73 | 0 | 100.0% | 6.6 | 6.6 | β | 4 |
| 2008 | 25 | SF | 10 | β | 17 | 17 | 202 | 0 | 100.0% | 11.9 | 11.9 | β | 9 |
| 2009 | 26 | SF | 9 | β | 11 | 6 | 24 | 0 | 54.5% | 4.0 | 2.2 | β | 1 |
| 2010 | 27 | SEA | 10 | β | 13 | 8 | 37 | 0 | 61.5% | 4.6 | 2.8 | β | 0 |
| 2011 | 28 | SEA | 10 | β | 14 | 9 | 74 | 1 | 64.3% | 8.2 | 5.3 | β | 4 |
| 2012 | 29 | SEA | 11 | β | 15 | 13 | 126 | 2 | 86.7% | 9.7 | 8.4 | β | 8 |
| 2013 | 30 | SEA | 4 | 0* | 3 | 2 | 27 | 0 | 66.7% | 13.5 | 9.0 | β | 1 |
| Career | 78 | 93 | 75 | 610 | 3 | 80.6% | 8.1 | 6.6 | β | 30 |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
| Season | Age | Team | G | GS | Pass EPA | Rush EPA | Rec EPA | Pass AirYd | Rec AirYd |
|---|---|---|---|---|---|---|---|---|---|
| 2006 | 23 | β | β | β | -2.6 | -10.3 | 3.0 | 0 | 2 |
| 2007 | 24 | β | β | β | β | -5.0 | 1.7 | 0 | 2 |
| 2008 | 25 | β | β | β | β | -8.0 | 12.3 | 0 | 66 |
| 2009 | 26 | β | β | β | β | -0.4 | -4.2 | 0 | 10 |
| 2010 | 27 | β | β | β | 2.1 | 6.5 | -12.4 | 28 | 35 |
| 2011 | 28 | β | β | β | β | -5.2 | 3.0 | 0 | 45 |
| 2012 | 29 | β | β | β | β | 6.1 | 10.3 | 0 | 22 |
| 2013 | 30 | β | β | 0* | β | -0.5 | 0.4 | 0 | 17 |
| Career | β | β | β | 28 | 199 |
* GS not available from free sources β SG* estimated from snap share (nflverse 2012+)
A solid career by KV-H: a well-rounded profile that scores 45 of 100, era-normalized against rush yds/g peers across 8 scored seasons.
Blend 45.2 Γ longevity 1 = KV-H 45Β· confidence 94%
Season-by-season quality (era-relative rush yds/g)
Reached 5% of the all-time Receptions leader β a rotational/depth all-time profile at the position.
A 0β100 scale where 100 = matched the all-time leaderat this position. Built only from visible encyclopedia data β career production vs. the all-time leader, plus efficiency (EPA) and comparable-player confidence β so it's a transparent context score, not a subjective rating. Tiers: Elite β₯ 85 Β· Strong β₯ 65 Β· Solid β₯ 45 Β· Depth < 45. Comparable-player confidence: 90%.
Production per snap β 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+).
Amber = this player (normalized to own peak). Indigo = average RBs aging curve. Group peak age: 21. Source: StatVault KV-H era (1999+).
Percentiles compare each raw measurement against position peers, the full combine pool, and the same draft class where enough samples exist.
College stats are not imported for this profile yet.
StatVault has the verified college attribution (Penn 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.
Career teammates and draft class, derived from year-by-year rosters β every name is linked.
Michael inherited the San Francisco 49ers RB room from Frank Gore (2005β2014), and handed it to Moran Norris (2006β2010).
Statistical + physical similarity across every player in the database, position-relevant (0β100%).
Last recorded season with SEA
Joined SEA (from SF)
Drafted by SF β Round 4, Pick 100
From nflverse weekly injury reports Β· coverage begins 2009.
| Season | Team | Games Out | Designations |
|---|---|---|---|
| 2011 | SEA | 2 | W2OutΒ· AnkleW3OutΒ· Ankle |
| 2010 | SEA | 0 | W8QuestionableΒ· HamstringW9QuestionableΒ· HamstringW10DoubtfulΒ· HamstringW11DoubtfulΒ· HamstringW12QuestionableΒ· Hamstring |
| 2009 | SF | 0 | W12DoubtfulΒ· Shoulder |
StatVault's proprietary player intelligence, informed by full career data. How Knox works β
Era-normalized career quality β z-scored against 8-season peers. See all β
Career durability β games played vs. scheduled, across 8 seasons.
Rush Yds translated to the 2025NFL β 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 | β 2025 Rush Yds | β 2025 /G |
|---|---|---|---|---|
| 2006 | 116 | 8.3 | 183+67 | 10.8 |
| 2007 | 121 | 12.1 | 219+98 | 12.9 |
| 2008 | 50 | 5 | 116+66 | 6.8 |
| 2009 | 2 | 0.2 | 34+32 | 2 |
| 2010 | 77 | 7.7 | 180+103 | 10.6 |
| 2011 | 7 | 0.7 | 97+90 | 5.7 |
| 2012 | 49 | 4.5 | 154+105 | 9 |
| 2013 | 0 | 0 | 30+30 | 1.8 |
Data: nflverse:players, nflverse:player_stats, nflverse:player_stats_def, nflverse:snap_counts, nflverse:combine, nflverse:draft_picks, nflverse:advanced-epa (CC-BY 4.0), nflverse:injuries Β· multi-source verified via the StatVault Oracle Β· updated 6/18/2026
Career Value Β· VORP
0 career value over replacement β #4494 all-time of 4,642. 0/season above a replacement-level RB.
Pick #100 (Rd 4) Β· SF Β· 2006 Β· +6.3 vs expected KV-H
Fan Rating
Rate Michael Robinson β All-Time
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Composite score across availability, IR frequency, and injury severity. See all β
Michael inherited the Seattle Seahawks RB room from Leon Washington (2010β2012), and handed it to Marshawn Lynch (2010β2019).
The room is reconstructed from arrival order among durable members (β₯4 seasons with the club) at the playerβs position group β a lineage by arrival, not a week-by-week depth chart. Distinct from the league-wide positional GOAT torch.
Jerome Felton
FB
89% match
2006 Draft ClassmatesFull class β