JalenSlappy
GG#70MRSH Thundering Herd
6'4" • 312lbs • RS Sr.Draft Eligibility:2027

- Overall Grade '26
- 57.5
- 459th/673 - Gs
- Pass Block Grade '26
- 78.3
- 117th/673 - Gs
- Run Block Grade '26
- 51.6
- 573rd/673 - Gs
- WK 10 MATCHUP
- @ GSOUTH 11/7, 8:30 PM
Jalen
Slappy
G
#70
|
MRSH Thundering Herd
Summary Bio
Summary Bio
Last updated: 11/2/2026
Jalen Slappy is an offensive guard for the Marshall Thundering Herd who earned a 57.5 overall PFF grade in the 2026 season, 459th among 673 qualified offensive guards. He played 579 offensive snaps on the season.
His PFF pass-blocking grade of 78.3 ranked 117th among 673 qualified offensive guards. His run-blocking grade of 51.6 ranked 573rd at the position.
He allowed 9 total pressures in pass protection. That total included 1 sacks and 0 hits allowed to opposing pass rushers. He was flagged for 5 penalties over the course of the season.
Career
Career
Teams
Year
Marshall Thundering Herd
2022 - Present
PFF Grades
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
57.5
AVG
459th/673 Gs
RUN BLOCKING GRADE
51.6
AVG
573rd/673 Gs
PASS BLOCKING GRADE
78.3
AVG
117th/673 Gs
Highest Graded Games
Highest Graded Games
@ NCAP
79.6
Week 13, 2025
vs VAOD
75.8
Week 7, 2025
vs NYST
71.8
Week 1, 2024
Lowest Graded Games
Lowest Graded Games
vs KYEA
49.4
Week 3, 2025
vs VAJM
52.5
Week 11, 2025
vs GASO
53.8
Week 14, 2025
Grades by Game
Grades by Game
There's no Grades by Game data available for this player.
Season Stats
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).
OFFENSE SNAPS PLAYED
579
46th/673 Gs
PENALTIES
5
613th/673 Gs
SACKS ALLOWED
1
284th/673 Gs
Blocking
View in Premium Stats
Rank
46
th
Offensive Snaps Played
579
91
st
Pass Block Snaps Played
308
63
rd
Run Block Snaps Played
271
613
th
Penalties
5
284
th
Sacks Allowed
1
1
st
Hits Allowed
0
458
th
Total Pressure Allowed
9
Positional Pivots
View in Premium Stats
Rank
160
th
Snaps Played at LT
0
921
st
Snaps Played at LG
0
168
th
Snaps Played at C
0
149
th
Snaps Played at RG
411
7
th
Snaps Played at RT
168
217
th
Snaps Played at TE
0