A native of Milford, Del., Marshall is in his sixth season as head coach of the DSU women's tennis team. In 2014, he led the Hornets to the HBCU National Championship, earning him HBCU National Coach-of-the-Year honors.
During his first season at Delaware State, he led the Hornets to the Mid-Eastern Athletic Conference Northern Division championship and the HBCU national finals.
Marshall was a three-sport athlete at Milford High School, leading the school to three Henlopen Conference championships and two second place finishes in the state tennis championships. In addition, he was an All-State Tennis Selection.
Marshall attended Washington College in Maryland, where he was a Beneficial Hodson Merit Scholar. A three-year team captain, he helped lead the Shoremen to two NCAA Div. III Final Fours and was Most Valuable Player on a club that was ranked No. 1 in the NCAA. He was the first Washington College player to reach 100 singles wins (129-19) and 100 wins in doubles (125-14). Marshall defeated four National champions, competed in two NCAA Tournaments and was ranked as high as No. 29 in the national rankings.
Upon graduation, he was awarded the Washington College Eldridge Ellison Award as the Student-Athlete that has achieved the most in the field of athletics as voted by all head coaches. He was inducted into the Washington College Hall-of-Fame in 2005.
Marshall earned a master's in human resources from Wilmington University (Del.), graduating with a 4.0 grade-point-average and receiving The Richard Campbell-Posnell Award for Highest GPA among all graduates. He was later awarded a doctorate in education from Wilmington University, graduating with a 3.8 GPA.
From 1989 until 2009, Marshall served as Director of Tennis at Sea Colony Resort, taking it from a regional tennis resort to a Top 10 ranking in Tennis Magazine. During his time at Sea Colony, he brought the Henlopen Conference Championships from the local high schools to the resort, spearheaded the growth of the club from 18 to courts to 34, constructed a multi-million dollar indoor and increased club revenue 1000%. He also coached 125 players to play college tennis. He was awarded the Southern Exposure Award for Customer Service and 25 years of service.
From 2007 until 2011, Marshall served as the Head Coach of Washington College Men's and Women's tennis teams. His men's teams posted a record of 46-26 and qualified for the conference tournament each year. His teams did not have a losing season and reached the semi-finals of the conference tournament. The team achieved and regained regional rankings, and finished No. 13 in the region his last season. During his time at Washington, six Players were all-conference and one was nationally ranked and earned All-America status.
Marshall's Washington College women's teams were extremely successful. He set a record for most wins in program history with 55 (55-19). His teams reached two conference tournament finals. His final team was ranked as high as No. 7 in the region, producing a record four all-conference players and two nationally ranked players. Under Marshall, the WC women set records for most wins in a year 18 and consecutive wins at 11. They never had a losing season winning, close to 75 % of its matches.
As a player, Marshall holds titles in Delaware for open men's singles, doubles and mixed. He was ranked No. 1 in the state in each. He also holds a Middle State Men's Open Doubles No. 1 ranking with Shannon Buck. He is a nationally ranked senior player now and also ranked No. 8 in the nation with his daughter Brittany in the Father-Daughter national rankings. He was inducted into the Delaware Hall of Fame for Tennis in 2006.
As a private coach he has been blessed to work and coach many great top college players, including:
Jess Robinson #1 US Junior, US Open Qualifier NCAA Champion (Duke University); Shannon Patrick Buck, #1 US Junior, #15 NCAA Division 1 Men (US Air Force); Kim Schiff #1 US Junior, #1 (Vanderbilt University).
He has worked with Madison Brengle Wimbeldon, Finalist Jr. and Professional; Wayne Odesnik #77 ATP Tour.
Marshall has been awarded the Middle States USPTA Pro of the Year, as well as Delaware Pro of the Year.
Marshall has won 12 National titles and has been ranked #1 in the United States individually in over 45 doubles and is currently ranked #2 with Ellis Ferreira.
Marshall is also the co-owner of The Dave Marshall Tennis and Fitness Center in Lewes, Delaware.