Advanced
Computed from every play, garbage time excluded. FBS rank among players with enough volume
| Defense | Value | FBS rank |
|---|---|---|
| Havoc plays | 0 | — |
| Tackles for loss | 0 | — |
| Run stops | 0 | — |
| Sacks | 0 | — |
| Pass breakups | 0 | — |
| Interceptions | 0 | — |
| Forced fumbles | 0 | — |
| Tackles | 3 | — |
Charting
Where Williams's plays went: throw and catch spots, air yards and yards after the catch, read from the play-by-play
The play-by-play names the defender on breakups, interceptions and tackles, but not the man in coverage on every throw, so true times-targeted isn't in the text. Coverage plays is the closest stand-in; exact targets come from hand charting.
Career
3 seasons since 2014 · box-score totals, snap share estimated from play-by-play
| Season | Team | G | Snaps | Tkl | TFL | Sacks | INT | PD | Havoc |
|---|---|---|---|---|---|---|---|---|---|
| 2026 so far |  USC#24 · 6-1 | 4 | 9% | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025 | USC#13 · 9-4 | 12 | 77% | 41 | 0 | 0 | 0 | 4 | 4 |
| 2024 | USC#18 · 7-6 | 1 | — | 1 | 1 | 0 | 0 | 1 | — |
Past seasons are summed from ESPN box scores; success rates and snap shares come from the play-by-play. Marcelles Williams's team rank is that season's final TDC rank. A dash means the stat wasn't recorded.
Game Log
Marcelles Williams's box score, game by game, from ESPN, with a 0–10 game score for each (hover it for how it works). Click a result for the full game
| Defense | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wk | Opponent | Result | Game score | Tkl | Solo | TFL | Sacks | Hur | PD | INT | TD |
| 1 |  San José State | W 42–26 | — | no stats recorded | |||||||
| 1 |  Fresno State | W 39–0 | — | no stats recorded | |||||||
| 2 |  Louisiana | W 49–30 | 5.0 | 2 | 2 | 0 | 0 | 0 | 0 | · | · |
| 3 | @ Rutgers | W 42–35 | — | no stats recorded | |||||||
| 4 |  Oregon | L 27–41 | 4.0 | 1 | 1 | 0 | 0 | 0 | 0 | · | · |
| 5 |  Washington | W 25–21 | 4.0 | 1 | 1 | 0 | 0 | 0 | 0 | · | · |
| 6 | @ Penn State | W 31–23 | 2.5 | 1 | 0 | 0 | 0 | 0 | 0 | · | · |
| 2026 · 4 games | 3.9 | 5 | 4 | 0 | 0 | 0 | 0 | · | · | ||
2026 Season Stats
FBS rank among qualifying players
| Defense | 2026 | FBS rank |
|---|---|---|
| Tackles | 5 | 2895th / 5406 |
| Solo | 4 | — |
| Tackles for loss | 0 | — |
| Sacks | 0 | — |
| QB hurries | 0 | — |
| Passes defended | 0 | — |
| Defensive TD | 0 | — |
Snaps by Game
Estimated snaps from a model trained on real NFL snap counts. Ranges in brackets are where the real number lands 80% of the time: wide for a single game, tighter over the season. How it works
| Game | Opp. plays | Est. snaps | Plays made | Snap share |
|---|---|---|---|---|
| Wk 2 · Louisiana | 52 | ~35 (0–52) | 2 | 67% |
| Wk 4 · Oregon | 68 | ~2 (0–6) | 1 | 3% |
| Wk 5 · Washington | 60 | ~1 (0–3) | 1 | 2% |
| Wk 6 · Penn State | 63 | ~· | 1 | 0% |
| Season | 413 | 38 (0–49) | 5 | 9% |
Position Room
22 DBs on the USC roster, ordered by tkl
| # | Player | Pos | Class | Tkl | TFL | Sacks | INT | PD |
|---|---|---|---|---|---|---|---|---|
| 6 | Christian Pierce | S | SR | 40 | 0 | 0 | 1 | 2 |
| Kennedy Urlacher | S | 21 | 4 | 3 | — | 1 | ||
| 7 | Alex Graham | CB | FR | 15 | 3 | 2 | — | 0 |
| 16 | Prophet Brown | CB | SR | 15 | 0 | 0 | 2 | 3 |
| Jontez Williams | CB | 14 | 0 | 0 | — | 2 | ||
| 27 | Chasen Johnson | CB | SO | 9 | 0 | 0 | — | 1 |
| 21 | RJ Sermons | CB | FR | 8 | 0 | 0 | — | 0 |
| Marcelles Williams | CB | 5 | 0 | 0 | — | 0 | ||
| 38 | Isaiah Rubin | S | SO | 4 | 1 | 0 | — | 0 |
| 2 | Elbert Hill IV | CB | FR | 3 | 0 | 0 | — | 1 |
| 28 | Carrington Pierce | CB | SO | 2 | 0 | 0 | — | 0 |
| 31 | Madden Riordan | S | FR | 2 | 0 | 0 | — | 0 |
| 34 | Jayden Crowder | CB | FR | 2 | 0 | 0 | — | 0 |
| 19 | Brandon Lockhart | CB | FR | 1 | 0 | 0 | — | 0 |
| 36 | Peyton Dyer | S | FR | 1 | 0 | 0 | — | 0 |
| 23 | Kendarius Reddick | S | SO | — | — | — | — | — |
| 29 | Joshua Holland II | CB | FR | — | — | — | — | — |
| 30 | Marquis Gallegos | S | SO | — | — | — | — | — |
| 37 | Trestin Castro | CB | FR | — | — | — | — | — |
| 39 | Peter Sciarrino | S | FR | — | — | — | — | — |
| 40 | Shawn Sehra | CB | JR | — | — | — | — | — |
| 48 | Derek Diniz | CB | FR | — | — | — | — | — |
Stats, EPA and usage come from CollegeFootballData.com and refresh daily. FBS ranks only count players with enough volume for the stat to mean something. Qualifying for EPA takes —+ plays per team game. USC depth chart →