The head men's lacrosse coach at Villanova University from 1982-2006, Randy Marks compiled a record of 179-152 during his 24 year tenure and was named to the United States Intercollegiate Lacrosse Association (USILA) Century Club.

Marks had numerous players garner recognition for their play, including five players who earned USILA Honorable Mention All-America distinction and 22 players that claimed All-Conference recognition. He has also had 16 players compete in the North/South All-Star Game, two Colonial Athletic Association Player of the Year Award recipients, four Academic All-America selections and 20 All-Conference selections. Villanova also produced the conference Rookie of the Year in 2003 and the Defensive Player of the Year in 2004.

In 2004, Marks guided Villanova to an impressive 12-3 record and a final ranking of No. 14 in the national poll. This ranking marked the Wildcats highest placement in the program's history and marked the fourth time in five years that the Wildcats earned a spot in the national poll. For his efforts in 2003 when he led Villanova to a 10-5 record, Marks was named the Colonial Athletic Association Coach of the Year. He also earned the Frenchy Julian Sportsmanship Award in 2000 and the USILA Lifetime Service Award in 2006 for 35 years of coaching.

A teacher and administrator in the Lower Merion School District from 1969-2001, Marks worked as a physical education teacher (1969-93) before accepting the position of Dean of Students at Harriton High School (1993-2001). In addition, he served as an assistant football (1973-82) and lacrosse (1971-82) coach at Lower Merion High School as the Aces recorded a 121-36 record while winning the state championship twice in four appearances (1977, 1979) during his 11 year career as an assistant lacrosse coach.

A 1969 graduate of West Chester University of Pennsylvania with a Bachelor of Science in Health and Physical Education, Marks earned a Masters in Education from West Chester in 1972.