Usage Score
1.7
Player Dossier
2019-2020New Mexico State
Ja'Marvin Hartfield
LB • 6'1" • 225 lbs • Cedar Hill, TX, USA
Ball-hunting defenderSplash play profile
Ja'Marvin Hartfield shows a ball-hunting defender profile with partial disruption data.
Efficiency
9.7
Consistency
100
Season Value
37.1
Career Arc
Value trend by season
Best season by value score: 2019 Regular Season · New Mexico State
1920
Snapshot
- Career Teams
- 1
- Seasons Tracked
- 2
- Program Path
- New Mexico State
- Peak Game
- Peak game by takeover score: Alabama
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.
Ja'Marvin Hartfield, LB. Best season Best season by value score: 2019 Regular Season · New Mexico State. Ja'Marvin Hartfield shows a ball-hunting defender profile with partial disruption data.
Player insights
Lead takeaway
Best season by value score: 2019 Regular Season
New Mexico State paired 0 primary output with 9.7 efficiency.
Supporting note
2019 Regular Season role shape
impact-led usage with 9.7 efficiency.
Supporting note
Career value cooled off
2020 Regular Season fell back from the prior stop by season value score.
Supporting note
Peak game by takeover score: Alabama
Loss with 0 impact plays across the defensive snap sheet. 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.
2019 Regular Season · New Mexico State
Games
3
Havoc Plays / G
0
Efficiency
9.7
Usage
1.7
Consistency
100
Best Game by takeover score
San Diego State
Hover a point or expand a game row to keep the active game context visible here.
Game-by-Game Trend
123
Chronological game order.
Game by game trend chart. Washington State: 0. Alabama: 0. San Diego State: 0
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. Washington State: 2 by 8.3. Alabama: 3 by 12.5. San Diego State: 2 by 8.3
Split Comparison
Losses0 · n=3
First Half0 · n=2
All Games0 · n=3
Game Log
Dense stat lines with inline explanations and season-linked highlights.
3 games
Featured metric
Havoc Plays
Top game by takeover score
Alabama
Best efficiency game
12.5 vs Alabama
Career Arc
Track team changes, role shifts, and season-to-season movement.
- 1
New Mexico State
2019-2020
Opening stop
Season Progression
20192020
| Season | Team | Primary | Efficiency | Usage | Delta |
|---|---|---|---|---|---|
| 2019 Regular Season | New Mexico State | 0 | 9.7 | 1.7 | — |
| 2020 Regular Season | New Mexico State | 0 | — | — | 0 |
Signature Performances
Top Games
#1 Featured game
Alabama
Loss with 0 impact plays across the defensive snap sheet.
0
Primary metric
0 disruption/tackle impact with 5 takeover score.
#2
Washington State
0
Primary metric
Loss with 0 impact plays across the defensive snap sheet.
0 disruption/tackle impact with 3.3 takeover score.
#3
San Diego State
0
Primary metric
Loss with 0 impact plays across the defensive snap sheet.
0 disruption/tackle impact with 3.1 takeover score.
Top Seasons
#1 Season by value score
2019 Regular Season · New Mexico State
0 primary output · 9.7 efficiency · 1.7 usage
37.1
#2
2020 Regular Season · New Mexico State
—
0 primary · — efficiency · — usage
Milestones
0
Impact games
0
Splash games
0
10+ tackle games
Bio, Recruit, and Data Context
Recruit Profile
2★
Class 2019 · Rating 0.7956
Trinity Christian School · Cedar Hill, TX
- Committed To
- New Mexico State
- Commit Date
- Jan 1, 2019
Career Facts
1
Career teams
2
Seasons tracked
7
Career Tackles
Data Context
Coverage spans 2 tracked seasons, 3 games, and base opponent context only. Derived metrics fall back to raw production when share or rating context is missing.