Usage Score
14.7
Player Dossier
2009-2012Penn State
Derek Day
RB • 5'9" • Harrisburg, PA, USA
Balanced backfield optionSteady chain mover
Derek Day leans balanced backfield option traits and 38.7 efficiency.
Efficiency
38.7
Consistency
55.5
Season Value
52
Career Arc
Value trend by season
Best season by value score: 2012 Regular Season · Penn State
09101112
Snapshot
- Career Teams
- 1
- Seasons Tracked
- 4
- Program Path
- Penn State
- Peak Game
- Peak game by takeover score: Indiana
Scouting Read
Best season and peak-game context are pinned here so the rest of the page can stay analytical without losing the headline story.
Derek Day, RB. Best season Best season by value score: 2012 Regular Season · Penn State. Derek Day leans balanced backfield option traits and 38.7 efficiency.
Player insights
Lead takeaway
Best season by value score: 2012 Regular Season
Penn State paired 129 primary output with 38.7 efficiency.
Supporting note
2012 Regular Season role shape
backfield-heavy usage with 38.7 efficiency.
Supporting note
Career value is trending up
2012 Regular Season improved on the prior stop by season value score.
Supporting note
Peak game by takeover score: Virginia
Loss with 64 yards from scrimmage and efficient touch value. It landed in the 100th percentile of the selected season.
Analysis workspace
Season Workbench
Filter the strongest season sample, inspect game-level shape, and then drop into the full log without losing the story of the year.
Season Explorer
Understand the selected season before dropping into the full game log.
2012 Regular Season · Penn State
Games
4
Scrimmage Yards / G
32.3
Efficiency
38.7
Usage
14.7
Consistency
55.5
Best Game by takeover score
Iowa
Hover a point or expand a game row to keep the active game context visible here.
Game-by-Game Trend
1234
Chronological game order.
Game by game trend chart. Ohio: 39. Virginia: 64. Illinois: 14. Iowa: 12
Volume vs Efficiency
Low volume / high quality
High volume / high quality
Low volume / lower quality
High volume / lower quality
Volume on the x-axis, quality on the y-axis.
Volume versus efficiency scatter chart. Ohio: 9 by 46.2. Virginia: 19 by 30.4. Illinois: 4 by 36.5. Iowa: 3 by 41.7
Split Comparison
Wins13 · n=2 · -38.5 vs Losses
Losses51.5 · n=2 · +38.5 vs Wins
First Half51.5 · n=2 · +38.5 vs Second Half
Second Half13 · n=2 · -38.5 vs First Half
Game Log
Dense stat lines with inline explanations and season-linked highlights.
4 games
Featured metric
Scrimmage Yards
Top game by takeover score
Virginia
Best efficiency game
46.2 vs Ohio
Career Arc
Track team changes, role shifts, and season-to-season movement.
- 1
Penn State
2009-2012
Opening stop
Season Progression
2009201020112012
| Season | Team | Primary | Efficiency | Usage | Delta |
|---|---|---|---|---|---|
| 2009 Regular Season | Penn State | 0 | — | — | — |
| 2010 Regular Season | Penn State | 0 | — | — | 0 |
| 2011 Regular Season | Penn State | 40 | 59.4 | 4.9 | 40 |
| 2012 Regular Season | Penn State | 129 | 38.7 | 14.7 | 89 |
Signature Performances
Top Games
#1 Featured game
Indiana
Win with 13 yards from scrimmage and efficient touch value.
13
Primary metric
13 scrimmage yards and 1.5 usage.
#2
Virginia
64
Primary metric
Loss with 64 yards from scrimmage and efficient touch value.
64 scrimmage yards and 30.6 usage.
#3
Eastern Michigan
18
Primary metric
Win with 18 yards from scrimmage and efficient touch value.
18 scrimmage yards and 8.3 usage.
#4
Ohio
39
Primary metric
Loss with 39 yards from scrimmage and efficient touch value.
39 scrimmage yards and 18.4 usage.
#5
Unknown
9
Primary metric
Game with 9 yards from scrimmage and efficient touch value.
9 scrimmage yards and 5 usage.
Top Seasons
#1 Season by value score
2012 Regular Season · Penn State
129 primary output · 38.7 efficiency · 14.7 usage
52
#2
2011 Regular Season · Penn State
43.5
40 primary · 59.4 efficiency · 4.9 usage
#3
2009 Regular Season · Penn State
—
0 primary · — efficiency · — usage
Milestones
0
100+ rush yards
0
150+ scrimmage yards
0
2+ TD games
Bio, Recruit, and Data Context
Career Facts
1
Career teams
4
Seasons tracked
169
Career Scrimmage Yards
Data Context
Coverage spans 4 tracked seasons, 7 games, and base opponent context only. Derived metrics fall back to raw production when share or rating context is missing.