Usage / Role
13%
Rotational defensive role
Player Dossier
2021-2025Northwestern
LB • 6'3" • 235 lbs • West Lafayette, IN, USA
Yanni Karlaftis shows a ball-hunting defender profile with 16.5 disruption score.
Usage / Role
13%
Rotational defensive role
Impact Production
33
Developing production for a linebacker
Reliability
35
Sporadic game-to-game production
Star Power
41
Limited ceiling signals so far
Career Arc
Value trend by season
Best season by Season Value: 2021 Regular Season · Purdue
Snapshot
Player Story
Yanni Karlaftis built his college career from 2021 through 2025 as a linebacker from West Lafayette, IN wearing No. 14, spending time with Northwestern and Purdue. The clearest part of Yanni Karlaftis' career was his...
Read the storyYanni Karlaftis, LB. Best season Best season by Season Value: 2021 Regular Season · Purdue. Yanni Karlaftis shows a ball-hunting defender profile with 16.5 disruption score.
Stat Footprint
Quick Answers
Season Ledger
| Season | Team | Games | Tackles | TFL | Sacks | QB Hur | PD | TD | Overall |
|---|---|---|---|---|---|---|---|---|---|
| 2021 Regular Season | Purdue | 1 | 4 | - | 0 | 3 | 2 | 0 | 91.7 |
| 2022 Regular Season | Purdue | 2 | 4 | 0.5 | 0.5 | - | - | 0 | 27.6 |
| 2023 Regular Season | Purdue | 12 | 55 | 2.5 | 2.5 | - | - | 0 | 44.2 |
| 2024 Regular Season | Purdue | 11 | 57 | 1.5 | 0.5 | 2 | 1 | 0 | 48.5 |
| 2025 Regular Season | Northwestern | 4 | 11 | - | 0 | 1 | 1 | 0 | 34.9 |
Related Context
Transfer Portal History
| Season | Path | Movement | Value | Date |
|---|---|---|---|---|
| 2025 | Purdue to Northwestern | P4 to P4 | 79.1 | Dec 20, 2024 |
Yanni Karlaftis played LB for Purdue and Northwestern. Across 5 tracked seasons, Yanni Karlaftis recorded 131 tackles. His top tracked season came in 2023 with Purdue.
Lead takeaway
Best season by value score: 2021 Regular Season
Purdue paired 5 primary output with 66.7 efficiency.
Supporting note
2025 Regular Season role shape
impact-led usage with 16.5 efficiency.
Supporting note
Career value cooled off
2025 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 Purdue, Northwestern.
Supporting note
Peak game by takeover score: UCLA
Win with 1 impact plays across the defensive snap sheet. It landed in the 100th percentile of the selected season.
Analysis workspace
Filter the strongest season sample, inspect game-level shape, and then drop into the full log without losing the story of the year.
Understand the selected season before dropping into the full game log.
Games
4
Havoc Plays / G
0.5
Efficiency
16.5
Usage
4
Consistency
50
Best Game by takeover score
UCLA
Active game
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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. Tulane: 1. Western Illinois: 0. Oregon: 0. UCLA: 1
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.
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Volume on the x-axis, quality on the y-axis.
Volume versus efficiency scatter chart. Tulane: 4 by 26.7. Western Illinois: 3 by 12.5. Oregon: 2 by 8.3. UCLA: 2 by 18.3
Compare how this player performed across different situations. "Games" shows how many matchups are included in each split.
Dense stat lines with inline explanations and season-linked highlights.
4 games
Featured metric
Havoc Plays
Top game by takeover score
UCLA
Best efficiency game
26.7 vs Tulane
Player Story
Yanni Karlaftis built his college career from 2021 through 2025 as a linebacker from West Lafayette, IN wearing No. 14, spending time with Northwestern and Purdue. The clearest part of Yanni Karlaftis' career was his defensive production: 131 tackles, 4.5 tackles for loss, 3.5 sacks, and 4 passes defended across 30 career games in the available record. His largest box-score season came in 2023 with Purdue. Those numbers show where he fit, how often the ball or action found him, and how his role developed over time.
Defensive careers can be hard to read from one number, but Yanni Karlaftis' production has multiple signals. With 30 career games in the available record, his career has enough shape to show both opportunity and production across Northwestern and Purdue.
The arc is straightforward: Yanni Karlaftis moved through the depth chart, found a larger role, and turned that opportunity into production that can be understood through standard football numbers.
Track team changes, role shifts, and season-to-season movement.
Purdue
2021-2024
Opening stop
Northwestern
2025
Final stop
Season Value Progression
| Season | Team | Primary | Efficiency | Usage | Delta |
|---|---|---|---|---|---|
| 2021 Regular Season | Purdue | 5 | 66.7 | 14.1 | — |
| 2022 Regular Season | Purdue | 1 | 13.3 | 3.3 | -4 |
| 2023 Regular Season | Purdue | 5 | 23.3 | 5.4 | 4 |
| 2024 Regular Season | Purdue | 5 | 26.1 | 6.7 | 0 |
| 2025 Regular Season | Northwestern | 2 | 16.5 | 4 | -3 |
#1 Featured game
@ UConn
Week 2 · W 49-0
Win with 5 impact plays across the defensive snap sheet.
5
Havoc Plays
88.9 takeover
5 disruption/tackle impact with 88.9 takeover score.
#2
vs Illinois
Week 5 · W 44-19 · Conference game
2
Havoc Plays
84.4 takeover
Win with 2 impact plays across the defensive snap sheet.
2 disruption/tackle impact with 84.4 takeover score.
#3
vs Nebraska
Week 5 · L 10-28 · Conference game
2
Havoc Plays
84.4 takeover
Loss with 2 impact plays across the defensive snap sheet.
2 disruption/tackle impact with 84.4 takeover score.
#4
@ Northwestern
Week 12 · L 15-23 · Conference game
2
Havoc Plays
81.7 takeover
Loss with 2 impact plays across the defensive snap sheet.
2 disruption/tackle impact with 81.7 takeover score.
#5
vs Oregon
Week 8 · L 0-35 · Conference game
1
Havoc Plays
64.4 takeover
Loss with 1 impact plays across the defensive snap sheet.
1 disruption/tackle impact with 64.4 takeover score.
#1 Season by Season Value
2021 Regular Season · Purdue
5 primary output · 66.7 efficiency · 14.1 usage
91.7
#2
2024 Regular Season · Purdue
48.5
5 primary · 26.1 efficiency · 6.7 usage
#3
2023 Regular Season · Purdue
44.2
5 primary · 23.3 efficiency · 5.4 usage
7
Impact games
4
Splash games
0
10+ tackle games
Next best actions
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