J.D.Duplain
GG#67MSU Spartans
6'4" • 300lbs • RS Sr.Draft Eligibility:2024
- Overall Grade '23
- 62.9
- 262nd/646 - Gs
- Pass Block Grade '23
- 77.2
- 139th/646 - Gs
- Run Block Grade '23
- 56.7
- 398th/646 - Gs
- Snap Count '23
- 744
- 143rd/646 - Gs
J.D.
Duplain
G
#67
|
MSU Spartans
BIO
GRADES
SEASON STATS
Mock Draft Simulator
Summary Bio
Summary Bio
Last updated: 10/28/2026
J.D. Duplain was an offensive guard for the Michigan State Spartans who earned a 62.9 overall PFF grade in the 2023 season, 262nd among 646 qualified offensive guards. He played 744 offensive snaps on the season.
His PFF pass-blocking grade of 77.2 ranked 139th among 646 qualified offensive guards. His run-blocking grade of 56.7 ranked 398th at the position.
He allowed 10 total pressures in pass protection. That total included 1 sacks and 2 hits allowed to opposing pass rushers. He was flagged for 2 penalties over the course of the season.
Career
Career
Teams
Year
Michigan Panthers
2025
Michigan State Spartans
2019 - 2023
PFF Grades
PFF Grades
2023
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
62.9
AVG
262nd/646 Gs
RUN BLOCKING GRADE
56.7
AVG
398th/646 Gs
PASS BLOCKING GRADE
77.2
AVG
139th/646 Gs
Highest Graded Games
Highest Graded Games
vsMIWE
83.2
Week 1, 2022
vsMDUN
80.9
Week 11, 2021
vsOHAK
76.8
Week 2, 2022
Lowest Graded Games
Lowest Graded Games
vsPAST
51.4
Week 13, 2023
@OHST
53.4
Week 11, 2023
vsMDUN
54.8
Week 4, 2023
Grades by Game
Grades by Game
View in Premium Stats
Premium Stats
There's no Grades by Game data available for this player.
Season Stats
Season Stats
2023
Regular
Players receive a ranking if they qualify 25% of the maximum targets, run attempts or dropbacks at the position (depending on the metric).
OFFENSE SNAPS PLAYED
744
143rd/646 Gs
PENALTIES
2
197th/646 Gs
SACKS ALLOWED
1
211th/646 Gs
Blocking
View in Premium Stats
Rank
143
rd
Offensive Snaps Played
744
85
th
Pass Block Snaps Played
437
235
th
Run Block Snaps Played
307
197
th
Penalties
2
211
th
Sacks Allowed
1
345
th
Hits Allowed
2
289
th
Total Pressure Allowed
10
Positional Pivots
View in Premium Stats
Rank
163
rd
Snaps Played at LT
0
63
rd
Snaps Played at LG
726
83
rd
Snaps Played at C
18
877
th
Snaps Played at RG
0
193
rd
Snaps Played at RT
0
192
nd
Snaps Played at TE
0
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