Senior defensive lineman on Miami (OH)'s 2018 roster.
6′2″ · 290 lb · Avon, IN
The story
4 defensive lineman on Miami (OH)'s roster.
Recruiting
SDE recruit
No. 3323 nationally · Signed with Miami (OH)
No college snaps yet.
His career numbers, season by seasonMack Duffin
He arrived as a 2-star recruit and has three seasons of production at Miami (OH) behind him. The receipt on tape: 5 tackles against Northern Illinois, Week 12, 2018.
Low coverage — composed from the verified record.
How it ended
Three seasons at Miami (OH), 0 sacks — his college career is complete.
His career
Career arc
Coaching lineage · 2016–2018
1 coachPlayed his entire career under Chuck Martin.
Season context · Team result + system
3 seasons under Chuck Martin — 17-20 over that span.
Where this defender ranks vs the field
Box-score production percentiles vs the position cohort
Concern: tackles for loss (8th percentile).
Percentiles are versus same-position peers with enough snaps this season, based on box-score production. There are no play-by-play efficiency bars here: CFBD's play-value model credits offensive players only, so no defensive EPA exists to rank.
Splits · Per-game
2018 season · 8 games
Home vs Road
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Home3g | 2.0 | 0.0 | 0.0 | 0.0 |
| Road5g | 2.6 | 0.0 | 0.0 | 0.0 |
First half vs Second half
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Weeks 1-75g | 1.4 | 0.0 | 0.0 | 0.0 |
| Weeks 8+3g | 4.0 | 0.0 | 0.0 | 0.0 |
Supporting cast · Scheme
Staff and system around the player
Head Coach
Chuck Martin
Scheme reads (pass share, tempo, sack rate) need at least 3 team games — 2 games in so far.
Player standing · 2018
Earning real snaps in the rotation without a starting job.
| Season | Team | |||||||
|---|---|---|---|---|---|---|---|---|
| 2018 | Miami (OH) | 19 | 8 | 0.0 | 0.0 | -- | -- | -- |
| 2017 | Miami (OH) | 10 | 3 | 0.0 | 0.0 | -- | -- | -- |
| 2016 | Miami (OH) | 6 | 4 | 1.0 | 0.5 | -- | -- | -- |
| Career | 35 | 15 | 1.0 | 0.5 | -- | -- | -- |
Game log · Week-by-week
2018 season · 8 games
| Wk | Opp | TKL | SOLO | TFL | SACK | INT | PD | Note |
|---|---|---|---|---|---|---|---|---|
| Wk 1 | L 28-35vs Marshall | 2 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 2 | L 0-21vs Cincinnati | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 3 | L 3-26@ Minnesota | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 4 | W 38-23@ Bowling Green | 2 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 6 | W 41-17@ Akron | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 8 | L 30-31@ Army | 4 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 12 | W 13-7@ Northern Illinois | 5 | 3 | 0.0 | 0.0 | — | 0 | Season-high 5 tackles |
| Wk 13 | W 42-21vs Ball State | 3 | 3 | 0.0 | 0.0 | — | 0 | |
| Total | 19 | 8 | 0.0 | 0.0 | — | 0 |
Activity vs finishing · season enumeration
What the box score actually says
19 tackles. 0 passes defended. 0 interceptions. 0 TFL.
Counts only, never a rate — splash-event sample sizes this small (interceptions, pass breakups, TFL) are noise as a rate and signal only as a tally.