Armonk Tennis Staff

Doug Sherman

Doug Sherman

Tennis Director

Doug is the club's Tennis Director after holding the Senior Professional position at the Saw Mill Club from 2002 to 2008. In addition, he was the Head Professional at Seven Bridges Field Club in 2002 and 2003, and at Chappaqua Swim and Tennis from 2004 to 2007. Doug has also been involved with the USTA as a Recreational Coaches Workshop Trainer and the Competition Training Center Head Professional. After receiving his BBA in Hospitality and Tourism Management from James Madison University in 2001 and being named James Madison Outstanding Scholar Athlete in both his junior and senior years, Doug reached PTR "Professional" standards in 2002.

Email: tennisdirector@armonktennis.com

Greg Johnstone

Greg Johnstone

Tennis Academy Director

Greg started playing tennis in his home country of England at the age of five. As a junior, he played for Great Britain, ranking in the top 12 nationally and competing in various ITF tournaments around the world. Greg played collegiately at Morehead State University and the University of Kentucky. During his career, he won Conference Player of the Year (at MSU) and earned NCAA Division I ranking highs of #67 for singles and #14 for team (at UK).

Greg began coaching in the summer of 2005 and has coached players of all ages and abilities. As a true student of the game, Greg is a high-tempo, high-energy coach who puts emphasis on technique, along with physical and tactical awareness, to get the most out of his players.

Email: gjohnstone@armonkindoor.com

Jan Holaday

Jan Holaday

Senior Tennis Pro

Jan has coached and taught all levels of tennis in the New York metro area since 1987. He played ITF and ATP events from 1981 to 1995. He also played NCAA and NAIA college tennis and was ranked #3 nationally in Men's Doubles in 1984.

Jan loves teaching all levels, from beginners to tournament players.

Email: jholaday@armonkindoor.com

David Slater

David Slater

Tennis Pro

David is from St. Albans, England and works with the women's teams and juniors at Armonk Tennis Club during the summer. He returned to coaching after working in finance for five years. David's previous coaching experience includes being a part-time teaching pro at Tamarak Country Club during the summer of 2007. In 2003, he was the assistant coach of Southeastern Louisiana University, where he ran the women's team.

David graduated with a degree in Business Administration from Marist College, where he was a team captain and led the tennis program to the school's best seaspn record (22-3). He also led the team to its fifth consecutive MAAC Conference championship and an automatic NCAA tournament appearance. As a junior player in England, David held both National and European rankings before moving to the United States for college.

Email: dslater@armonktennis.com

Collin Torrence

Collin Torrence

Tennis Pro

Collin is from Broken Arrow, Oklahoma. He attended Bethany College, where he played #1 Singles and was the Regional MVP all four years. Before coming to Armonk, Collin was the Future Stars Summer Camp Director at Green Hollow.

Collin participates in the USTA Mixed Doubles League and brings a variety of strategy and energy to his clinics.

Email: ctorrence@armonkindoor.com

Francis DiMenna

Francis DiMenna

Tennis Pro

Aside from being a member of the Armonk Tennis Club staff, Francis is Director of Tennis at Mount Kisco Country Club during the summer. Francis also spent eight summers as the pro at the Larchmont Yacht Club and teaches for the Future Stars Tennis Academy. He was also the Boys and Girls Varsity coach at Bronxville High School. Before beginning his teaching career, Francis played competitively for Lynchburg College. He is a certified USPTA Professional.

Marc Farrell

Marc Farrell

Tennis Pro

Marc grew up in Pleasantville, New York, where he began playing tennis at the age of five. He competed in numerous tournaments as a ranked junior until graduating from Byram Hills High School. While at Byram Hills, he played on the varsity team for all four years and was captain during his junior and senior years. He then graduated from the University of Rhode Island with degrees in Sociology and Business.

Marc's previous coaching experience includes being the Assistant Head Professional at the Whippoorwill Country Club for four years. During the summer, he is now the Assistant Director of the Future Stars Summer Camp at Armonk Tennis Club and coach of the Northern Westchester Junior Tennis League team. Marc is a certified teaching professional, and he loves teaching players of all levels, from juniors to adults.

Email: mfarrell@armonktennis.com

Greg Anderson

Greg Anderson

Tennis Pro

Greg is originally from Johannesburg, South Africa, where he began playing tennis at the age of four. He competed in tournaments in South Africa throughout his junior career and climbed to the top of the nation's junior rankings in the under-12 through under-18 age groups. He was then recruited to play Division 1 tennis at the University of Kentucky, and later Morehead State University, where he earned First Team All-Conference, Team MVP, and Academic Recognition honors during his career. He holds a bachelor's degree in Exercise Science.

Greg has acted as hitting partner and strength trainer for his brother Kevin Anderson, who has reached a current career high of #34 in the ATP World Tour rankings. This experience has made him very aware of what it takes to succeed at the highest level and what aspiring tennis players should work on to get there.

Richard Callwood

Richard Callwood

Tennis Pro

Richard is both a USPTA P1 and a USPTR P1 Professional. He previously worked at Lake Side Field Club as the Head Tennis Pro and at Saw Mill Club. As a player, Richard has achieved age-specific rankings of #45 nationally and #3 in the Eastern Sectional.

Richard graduated from SUNY Purchase College with degrees in Mathematics & Computer Science and Economics. He then obtained a master's degree in Economics from Fordham University.

Summer Tennis Camp Staff

Our summer tennis camp staff.