Usage / Role
64%
Regular defensive contributor
lowfeatured
Player Dossier
2017-2021Northern Illinois
Jack Heflin
DL • 6'4" • 312 lbs • Prophetstown, IL, USA
Ball-hunting defenderSplash play profile
Jack Heflin shows a ball-hunting defender profile with partial disruption data.
Impact Production
81
High-end production for a defensive lineman
lowelite
Reliability
61
Reliable weekly contributor
lowhigh
Star Power
81
High-upside career profile
limitedstar
Career Arc
Value trend by season
Best season by Season Value: 2019 Regular Season · Northern Illinois
1718192021
Snapshot
- Career Teams
- 2
- Unique Seasons
- 5
- Program Path
- Northern Illinois • Iowa
- Peak Game
- Peak game by takeover score: Ball State
Player Story
Jack Heflin built his college career from 2017 through 2021 as a defensive lineman from Prophetstown, IL wearing No. 96, spending time with Iowa and Northern Illinois. The clearest part of Jack Heflin's career was...
Read the story2★
- Committed To
- Northern Illinois
- Commit Date
- Jan 1, 2016
Jack Heflin, DL. Best season Best season by Season Value: 2019 Regular Season · Northern Illinois. Jack Heflin shows a ball-hunting defender profile with partial disruption data.
Stat Footprint
Career production snapshot
- Tackles
- 81
- TFL
- 17.5
- Sacks
- 7.5
- QB hurries
- 4
Quick Answers
Jack Heflin quick answers
- Latest team and position
- Northern Illinois · DL
- Career Tackles
- 81
- Tracked sample
- 5 unique seasons · 5 entries · 36 games
- Best season
- 2019 Regular Season · Northern Illinois
- Top game
- Ball State
- Recruit profile
- 2-star · Prophetstown · Northern Illinois
- High school pipeline
- Prophetstown · 1 FBS recruit · 0 drafted players
- Latest roster
- No. 96 · Senior
Season Ledger
Crawlable season-by-season stats
| Season | Team | Games | Tackles | TFL | Sacks | QB Hur | PD | TD | Overall |
|---|---|---|---|---|---|---|---|---|---|
| 2017 Regular Season | Northern Illinois | 8 | 8 | 1 | 0 | - | - | 0 | 6.5 |
| 2018 Regular Season | Northern Illinois | 10 | 21 | 4.5 | 3.5 | - | - | 0 | 30.7 |
| 2019 Regular Season | Northern Illinois | 10 | 31 | 8.5 | 3 | 3 | - | 0 | 70.8 |
| 2020 Regular Season | Iowa | 8 | 21 | 3.5 | 1 | 1 | - | 0 | 29 |
| 2021 Regular Season | Northern Illinois | 0 | 0 | - | 0 | - | - | 0 | - |
Related Context
Keep exploring Jack Heflin
Jack Heflin played DL for Northern Illinois and Iowa. Across 5 tracked seasons, Jack Heflin recorded 81 tackles. His top tracked season came in 2019 with Northern Illinois.
Player insights
Lead takeaway
Best season by value score: 2019 Regular Season
Northern Illinois paired 14.5 primary output with 27.4 efficiency.
Supporting note
2019 Regular Season role shape
impact-led usage with 27.4 efficiency.
Supporting note
Career value cooled off
2021 Regular Season fell back from the prior stop by season value score.
Supporting note
Multi-stop career journey
Production spans 2 team stops, with role shifts visible across Northern Illinois, Iowa.
Supporting note
Peak game by takeover score: Ball State
Loss with 3 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 · Northern Illinois
Games
10
Havoc Plays / G
1.4
Efficiency
27.4
Usage
11.4
Consistency
61.2
Best Game by takeover score
Ball State
Hover a point or expand a game row to keep the active game context visible here.
Active game
Hover over a point
Hover or select a game to keep its context visible here without the page shifting around.
Game-by-Game Trend
Follow how the selected stat changes from one game to the next. Spikes mark standout outings, while dips show quieter weeks.
Chronological game order.
Game by game trend chart. Illinois State: 2.5. Utah: 0. Nebraska: 1. Vanderbilt: 1.5. Ball State: 3. Ohio: 0. Miami (OH): 1.5. Central Michigan: 0. Toledo: 2.5. Western Michigan: 2.5
Volume vs Efficiency
Each dot is a game. Farther right means the player carried more of the workload, and higher means they were more efficient with those chances.
Low volumeHigh quality
High volumeHigh quality
Low volumeLower quality
High volumeLower quality
Volume on the x-axis, quality on the y-axis.
Volume versus efficiency scatter chart. Illinois State: 4 by 41.7. Utah: 1 by 4.2. Nebraska: 2 by 18.3. Vanderbilt: 4 by 31.7. Ball State: 5 by 50.8. Ohio: 1 by 4.2. Miami (OH): 3 by 27.5. Central Michigan: 2 by 8.3. Toledo: 6 by 50. Western Michigan: 3 by 37.5
Split Comparison
Compare how this player performed across different situations. "Games" shows how many matchups are included in each split.
Wins1.9 · Games = 4 · +0.7 vs Losses
Losses1.2 · Games = 6 · -0.7 vs Wins
Game Log
Dense stat lines with inline explanations and season-linked highlights.
10 games
Featured metric
Havoc Plays
Top game by takeover score
Ball State
Best efficiency game
50.8 vs Ball State
| Result | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wed 11/27 | vs Western MichiganSplash game | W 17-14 | 3 | 2 | — | 1.50 | 1 | — | 0 | — | — |
| Thu 11/14 | @ ToledoSplash game | W 31-28 | 6 | 4 | — | 1.50 | 1 | — | 0 | — | — |
| Sat 11/2 | @ Central Michigan | L 10-48 | 2 | 1 | — | 0 | 0 | — | 0 | — | — |
| Sat 10/19 | @ Miami (OH) | L 24-27 | 3 | 1 | — | 1.50 | 0 | — | 0 | — | — |
| Sat 10/12 | @ Ohio | W 39-36 | 1 | 0 | — | 0 | 0 | — | 0 | — | — |
| Sat 10/5 | vs Ball StateSplash game | L 20-27 | 5 | 3 | — | 1 | 1 | — | 0 | — | — |
| Sat 9/28 | @ Vanderbilt | L 18-24 | 4 | 1 | — | 1.50 | 0 | — | 0 | — | — |
| Sun 9/15 | @ Nebraska | L 8-44 | 2 | 1 | — | 0 | 0 | — | 0 | — | — |
| Sat 9/7 | @ Utah | L 17-35 | 1 | 0 | — | 0 | 0 | — | 0 | — | — |
| Sat 8/31 | vs Illinois StateSplash game | W 24-10 | 4 | 1 | — | 1.50 | 0 | — | 0 | — | — |
Player Story
Jack Heflin story
Jack Heflin built his college career from 2017 through 2021 as a defensive lineman from Prophetstown, IL wearing No. 96, spending time with Iowa and Northern Illinois. The clearest part of Jack Heflin's career was his defensive production: 81 tackles, 17.5 tackles for loss, and 7.5 sacks across 36 career games in the available record. That gives Jack Heflin's career enough real context without stretching the story beyond the available production.
Career Arc
Track team changes, role shifts, and season-to-season movement.
- 1
Northern Illinois
2017-2021
Opening stop
- 2
Iowa
2020
Final stop
Season Value Progression
20172018201920202021
| Season | Team | Primary | Efficiency | Usage | Delta |
|---|---|---|---|---|---|
| 2017 Regular Season | Northern Illinois | 1 | 5.5 | 1.1 | — |
| 2018 Regular Season | Northern Illinois | 8 | 16.8 | 4.5 | 7 |
| 2019 Regular Season | Northern Illinois | 14.5 | 27.4 | 11.4 | 6.5 |
| 2020 Regular Season | Iowa | 5.5 | 17.8 | 4.3 | -9 |
| 2021 Regular Season | Northern Illinois | 0 | — | — | -5.5 |
Signature Performances
Top Games
#1 Featured game
vs Ball State
Week 6 · L 20-27 · Conference game
Loss with 3 impact plays across the defensive snap sheet.
3
Havoc Plays
83.6 takeover
3 disruption/tackle impact with 83.6 takeover score.
#2
@ Akron
Week 10 · W 36-26 · Conference game
3
Havoc Plays
79.4 takeover
Win with 3 impact plays across the defensive snap sheet.
3 disruption/tackle impact with 79.4 takeover score.
#3
@ Toledo
Week 12 · W 31-28 · Conference game
2.5
Havoc Plays
77.8 takeover
Win with 2.5 impact plays across the defensive snap sheet.
2.5 disruption/tackle impact with 77.8 takeover score.
#4
vs Illinois State
Week 1 · W 24-10
2.5
Havoc Plays
75 takeover
Win with 2.5 impact plays across the defensive snap sheet.
2.5 disruption/tackle impact with 75 takeover score.
#5
vs Western Michigan
Week 14 · W 17-14 · Conference game
2.5
Havoc Plays
73.6 takeover
Win with 2.5 impact plays across the defensive snap sheet.
2.5 disruption/tackle impact with 73.6 takeover score.
Top Seasons
#1 Season by Season Value
2019 Regular Season · Northern Illinois
14.5 primary output · 27.4 efficiency · 11.4 usage
70.8
#2
2018 Regular Season · Northern Illinois
30.7
8 primary · 16.8 efficiency · 4.5 usage
#3
2020 Regular Season · Iowa
29
5.5 primary · 17.8 efficiency · 4.3 usage
Milestones
9
Impact games
9
Splash games
0
10+ tackle games
Next best actions
Keep exploring Jack Heflin
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