1983 (Senior)
Ridder finished his senior season with the third-highest sack yardage on the team after dropping opposing quarterbacks twice for a loss of 24 yards.  His best game came of his career came against Missouri as he was in on seven tackles, including one for a six yard loss.  For the season, Ridder had 38 total tackles, 4 tackles for loss, and 2 sacks.  

1982 (Junior)
Ridder lettered his junior year finishing with 18 tackles (14 solo) and 4 tackles for loss.  

1981 (Sophomore)
As a sophomore, Ridder lettered and started one game vs. Florida State.  For the season, he had 26 tackles with a career high 5 tackles for loss.  

1980 (Redshirt)
Ridder redshirted during the 1980 season.

1979 (Freshman)
Ridder walked on as a freshman and played as a reserve on the freshman team.  

At West Point Central Catholic HS
As a senior at West Point CC, Ridder earned all-state and all-conference selections.

Personal
Ridder was born on Sept. 26, 1960 and is the son of Frank and Helen Ridder.