MarcellesWilliams

CBCB#25USC Trojans
5'11" • 190lbs • RS So.
Draft Eligibility:2029
Overall Grade '26
67.2
Not Enough Snaps
Snap Count '26
80
1324th/2304 - CBs
Interceptions '26
0
Not Enough Snaps
WK 10 MATCHUP
-
BYE WEEK
Marcelles
Williams
CB
#25
|
USC Trojans

Summary Bio

Last updated: 11/1/2026
Marcelles Williams is a cornerback for the USC Trojans who earned a 67.2 overall PFF defensive grade in the 2026 season, 0th among 1004 qualified cornerbacks. His PFF coverage grade of 68.9 ranked 0th among 1004 qualified cornerbacks. His run-defense grade of 55.2 ranked 0th at the position.
He recorded 0 interceptions on the season. Williams broke up 0 passes in coverage. He allowed a 62.5 passer rating when targeted by opposing quarterbacks. He surrendered 2 receptions in coverage. He also contributed 5 solo tackles in run support and open-field situations.

Career

Teams
Year
USC Trojans
2024 - Present

PFF Grades

2026
Regular
Players receive a ranking if they qualify 25% of the maximum targets, run attempts or dropbacks at the position (depending on the metric).
OVERALL GRADE
67.2
AVG
0th/1004 CBs
COVERAGE GRADE
68.9
AVG
0th/1004 CBs
PASS RUSH GRADE
-
AVG
0th/1004 CBs
RUN DEFENSE GRADE
55.2
AVG
0th/1004 CBs

Highest Graded Games

vs UTST
71.6
Week 2, 2024
@ NEUN
68.2
Week 10, 2025
vs LASW
67.8
Week 2, 2026

Lowest Graded Games

vs ILNW
55.8
Week 11, 2025
vs WAUN
57.9
Week 5, 2026
vs ORUN
58.2
Week 4, 2026

Season Stats

2026
Regular
Players receive a ranking if they qualify 25% of the maximum targets, run attempts or dropbacks at the position (depending on the metric).
SOLO TACKLES
5
No Data - Not Ranked
INTERCEPTIONS
0
No Data - Not Ranked
TOTAL PRESSURES
0
No Data - Not Ranked
RECEPTIONS ALLOWED
2
No Data - Not Ranked
Rank
-
Solo Tackles
5
-
Assists
2
-
Forced Fumbles
0
-
Stops
0
-
Sacks
0
-
Missed Tackles
0
-
Interceptions
0
-
Passer Rating Allowed
62.5
-
Yards per Reception Allowed
9
-
Total Pressures
0
-
PBUs
0
-
Receptions Allowed
2
Rank
1324
th
Total Snaps
80
1325
th
Run Defense Snaps
36
1105
th
Pass Rush Snaps
0
1303
rd
Coverage Snaps
44