Senior linebacker for Penn State. 2025: 5 tackles.
5′11″ · 223 lb · Iowa City, IA · City
John Klosterman
This is his third year in the same linebacker corps at Penn State. The receipt on tape: 2 tackles against Oklahoma State, Week 14, 2025.
Low coverage — composed from the verified record.
His career
Career arc
Coaching lineage · 2023–2025
2 coachesCoaching transition mid-career: James Franklin → Terry Smith. Worth noting in scheme + development context.
In Portal · 2026
In transfer portal
Season context · Team result + system
3 seasons under Matt Campbell — 26-13 over that span.
Where this defender ranks vs the field
Box-score production percentiles vs the position cohort
Concern: tackles (0th 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
2025 season · 5 games
Home vs Road
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Home3g | 1.0 | 0.0 | 0.0 | 0.0 |
| Road2g | 1.0 | 0.0 | 0.0 | 0.0 |
First half vs Second half
| TKL/g | TFL/g | SACK/g | PD/g | |
|---|---|---|---|---|
| Weeks 1-71g | 1.0 | 0.0 | 0.0 | 0.0 |
| Weeks 8+4g | 1.0 | 0.0 | 0.0 | 0.0 |
Supporting cast · Scheme
Staff and system around the player
Head Coach
Matt Campbell
Scheme reads (pass share, tempo, sack rate) need at least 3 team games — 2 games in so far.
Player standing · 2025
On the two-deep and pushing for snaps.
| Season | Team | |||||||
|---|---|---|---|---|---|---|---|---|
| 2025 | Iowa State | 5 | 4 | 0.0 | 0.0 | -- | -- | -- |
| 2024 | Iowa State | 4 | 3 | 1.0 | 0.0 | -- | -- | -- |
| 2023 | Iowa State | 9 | 3 | 0.0 | 0.0 | -- | -- | -- |
| Career | 18 | 10 | 1.0 | 0.0 | -- | -- | -- |
Game log · Week-by-week
2025 season · 5 games
| Wk | Opp | TKL | SOLO | TFL | SACK | INT | PD | Note |
|---|---|---|---|---|---|---|---|---|
| Wk 5 | W 39-14vs Arizona | 1 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 9 | L 27-41vs BYU | 1 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 11 | W 20-17@ TCU | 0 | 0 | 0.0 | 0.0 | — | 0 | |
| Wk 13 | W 38-14vs Kansas | 1 | 1 | 0.0 | 0.0 | — | 0 | |
| Wk 14 | W 20-13@ Oklahoma State | 2 | 2 | 0.0 | 0.0 | — | 0 | Season-high 2 tackles |
| Total | 5 | 4 | 0.0 | 0.0 | — | 0 |
7 more on the roster · Penn State team page