Linebacker, Northwestern (from Purdue), 2021–25
Yanni Karlaftis
- Number
- No. 14
- Height
- 6′3″
- Weight
- 235 lb
- Class (2025)
- Senior
- Hometown
- West Lafayette, IN
Yanni Karlaftis played linebacker at Purdue (2021–24) and Northwestern (2025).
Career highs
9tackles, career highvs. Ohio State, 2023Defense
| Season | Team | Tkl | Solo | TFL | Sacks | PD | Hur |
|---|---|---|---|---|---|---|---|
| 2021 | Purdue | 4 | 4 | 0 | 0 | 2 | 3 |
| 2022 | Purdue | 4 | 2 | 0.5 | 0.5 | 0 | 0 |
| 2023 | Purdue | 55 | 28 | 2.5 | 2.5 | 0 | 0 |
| 2024 | Purdue | 57 | 33 | 1.5 | 0.5 | 1 | 2 |
| 2025 | Northwestern | 11 | 6 | 0 | 0 | 1 | 1 |
| Career | 131 | 73 | 4.5 | 3.5 | 4 | 6 | |
Season lines from CollegeFootballData, regular season and bowls.
On the roster
| Season | Team | No. | Pos | Class | Ht | Wt |
|---|---|---|---|---|---|---|
| 2021 | Purdue | 14 | LB | Yr 1 | ||
| 2022 | Purdue | 14 | LB | Yr 2 | ||
| 2023 | Purdue | 14 | LB | Yr 3 | ||
| 2024 | Purdue | 14 | LB | Yr 4 | ||
| 2025 | Northwestern | 14 | LB | Sr. (Yr 5) | 6′3″ | 235 |
As each season’s roster listed the player (CollegeFootballData). Classes before the latest listing are counted back from it; “Yr 1” is the year on file where that count can’t place a season he played (a redshirt, transfer or 2020 year); height and weight as last listed.
Game by game
2025 Northwestern 4 games, 11 tackles
| Date | Opponent | Result | Tkl | Solo | TFL | Sacks | PD |
|---|---|---|---|---|---|---|---|
| Aug 30 | at Tulane | L 3–23 | 4 | 3 | 0 | 0 | 1 |
| Sep 5 | vs. Western Illinois | W 42–7 | 3 | 2 | 0 | 0 | 0 |
| Sep 13 | vs. Oregon | L 14–34 | 2 | 1 | 0 | 0 | 0 |
| Sep 27 | vs. UCLA | W 17–14 | 2 | 0 | 0 | 0 | 0 |
2024 Purdue 11 games, 57 tackles, 0.5 sacks
| Date | Opponent | Result | Tkl | Solo | TFL | Sacks | PD |
|---|---|---|---|---|---|---|---|
| Aug 31 | vs. Indiana State | W 49–0 | 1 | 1 | 0 | 0 | 0 |
| Sep 14 | vs. Notre Dame | L 7–66 | 4 | 0 | 0 | 0 | 0 |
| Sep 21 | at Oregon State | L 21–38 | 5 | 3 | 0 | 0 | 0 |
| Sep 28 | vs. Nebraska | L 10–28 | 8 | 5 | 0 | 0 | 1 |
| Oct 5 | at Wisconsin | L 6–52 | 5 | 3 | 0 | 0 | 0 |
| Oct 12 | at Illinois | L 49–50 | 4 | 3 | 0 | 0 | 0 |
| Oct 18 | vs.Oregon | L 0–35 | 8 | 7 | 1 | 0 | 0 |
| Nov 2 | vs. Northwestern | L 20–26 | 8 | 4 | 0 | 0 | 0 |
| Nov 16 | vs. Penn State | L 10–49 | 3 | 1 | 0 | 0 | 0 |
| Nov 22 | at Michigan State | L 17–24 | 4 | 3 | 0 | 0 | 0 |
| Nov 30 | at Indiana | L 0–66 | 7 | 3 | 0.5 | 0.5 | 0 |
2023 Purdue 12 games, 55 tackles, 2.5 sacks
| Date | Opponent | Result | Tkl | Solo | TFL | Sacks | PD |
|---|---|---|---|---|---|---|---|
| Sep 2 | vs. Fresno State | L 35–39 | 2 | 1 | 0 | 0 | 0 |
| Sep 9 | at Virginia Tech | W 24–17 | 1 | 1 | 0 | 0 | 0 |
| Sep 16 | vs. Syracuse | L 20–35 | 2 | 1 | 0 | 0 | 0 |
| Sep 22 | vs.Wisconsin | L 17–38 | 3 | 2 | 0 | 0 | 0 |
| Sep 30 | vs.Illinois | W 44–19 | 8 | 3 | 1 | 1 | 0 |
| Oct 7 | at Iowa | L 14–20 | 4 | 3 | 0 | 0 | 0 |
| Oct 14 | vs. Ohio State | L 7–41 | 9 | 6 | 0 | 0 | 0 |
| Oct 28 | atNebraska | L 14–31 | 8 | 1 | 0.5 | 0.5 | 0 |
| Nov 4 | at Michigan | L 13–41 | 4 | 4 | 0 | 0 | 0 |
| Nov 11 | vs. Minnesota | W 49–30 | 3 | 2 | 0 | 0 | 0 |
| Nov 18 | atNorthwestern | L 15–23 | 6 | 4 | 1 | 1 | 0 |
| Nov 25 | vs.Indiana | W 35–31 | 5 | 0 | 0 | 0 | 0 |
2022 Purdue 2 games, 4 tackles, 0.5 sacks
| Date | Opponent | Result | Tkl | Solo | TFL | Sacks | PD |
|---|---|---|---|---|---|---|---|
| Sep 10 | vs.Indiana State | W 56–0 | 2 | 1 | 0.5 | 0.5 | 0 |
| Nov 19 | vs.Northwestern | W 17–9 | 2 | 1 | 0 | 0 | 0 |
2021 Purdue 1 game, 4 tackles
| Date | Opponent | Result | Tkl | Solo | TFL | Sacks | PD |
|---|---|---|---|---|---|---|---|
| Sep 11 | at UConn | W 49–0 | 4 | 4 | 0 | 0 | 2 |
Box scores from CollegeFootballData, 2004 on. ✦ postseason; ★ a career high on file.
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