Board of Directors

Karl Hale • President
Hale has an accomplished tennis history. He played competitive tennis internationally, participated as a player and coach in Davis Cup for Jamaica and is a former Fed Cup Coach for Canada. In 2007, Karl was World #1 player over 40, in 2006, he was named PTR Pro of the Year. He is the Rogers Cup Toronto Tournament Director which is the largest one week tournament in the world with past champions Rafael Nadal, Roger Federer, Novak Djokovic, Serena Williams, Chris Evert. Karl is also the Head Tennis Professional at Donalda Club in Toronto, Canada. Along with his duties at the Rogers Cup and Donalda Club, Karl founded the Daniel Nestor Charity Event which has raised over $1,000,000 for North York General Hospital and Tennis Canada Go for Gold Fund. He also founded the Helping Hands Jamaica Foundation which has raised over $500,000 for education in his native Jamaica along with building 5 new schools.
Ken DeHart • Secretary
Ken DeHart, San Jose, California, is a Charter Member and former Executive Director of the organization. He is PTR International Master Professional and Clinician. DeHart was named PTR Professional of the Year twice. Currently, he is Director of Player Development at Alameda Valley Athletic Club. DeHart co-wrote the International Book of Drills with Dennis Van der Meer, has had numerous articles published in tennis magazines, and produces seven coaching DVDs. A coach and a player, DeHart has earned gold medals in the South Bay Senior Games and the Huntsman World Senior Tennis Games.
Leo Alonso • Director-at-Large
Leo has been a member of PTR for 30 years, and has served as the Official Representative for PTR in Argentina since 1995. A PTR International Master Professional, Leo is the coach and manager of Leonardo Mayer and Carlos Berlocq (Top 50 ATP players). He is also is the owner and founder of T.S. Management, a club management company currently responsible for 102 tennis courts and 30 teaching professionals. A presenter at many of the sport’s most prominent conferences and symposia, Leo has been a featured speaker at the USTA Tennis Teachers Conference, PTR International Tennis Symposium and ITF Regional Coaches Conference. He has conducted more than 200 workshops for tennis teaching professionals in China, England, Italy, Spain, and all Latin American countries. Leo has received several PTR awards, including Professional of the Year, Touring Coach of the Year, Clinician of the Year, Tester of the Year, and Pro of the Year for PTR Argentina.
Lynne Rolley • Director-at-Large
With more than 50 years of teaching and coaching expertise at every level, Rolley has been the Director of Women’s Tennis for the USTA, coached the Fed Cup Team, PanAm Games and the US National Teams all over the world. She was the Director of Tennis at Berkeley Tennis Club and Moraga Country Club. Most recently, Rolley served as Executive Director of Tennis at La Quinta Resort and PGA West, consistently ranked one of the top tennis resorts in the United States. Currently, she is the Director of Tennis at Meadow Swim and Tennis Club in Orinda, California. In her early years, Rolley was the first woman to coach a men’s NCAA team at St. Mary’s College in Moraga, California. As an adult she was ranked in the Top 10 women in the US, and held several National titles as the #1 ranked junior player. She spent many years coaching top players, such as Lindsay Davenport, Jennifer Capriati, Chanda Rubin and the Williams sisters. She is a renowned speaker and writer for Tennis Magazine, as well as other publications. Rolley also had her own academy show on appeared on the Tennis Channel. A PTR certified Professional and USPTA Elite Professional, Rolley is also a member of the International Coaches Commission. In 2008, Rolley was inducted into the Northern California Hall of Fame, and in 2019 she was entered the Multi-Cultural Sports Hall of Fame.
Rodney Harmon • Immediate Past President
Rodney has been Head Women’s Tennis Coach at Georgia Tech since July 2012. He has more than 25 years in player development. Prior to leading the Yellow Jackets, Rodney had been the Director of Tennis at Deerwood Country Club and Head Men’s Tennis Coach for the University of Miami. He left the Hurricanes to join the USTA High Performance, where he advanced to Director of Men’s Tennis, and coached future pros including Todd Martin, MaliVai Washington and Alex O'Brien. During his tenure at the USTA, Rodney served as the Head Coach of the US Men's Tennis Team at the 2008 Olympic Games in Beijing, China. He was also Director of Multicultural Development for USTA Community Tennis, and was responsible to develop strategies and implement initiatives to increase diversity in tennis. A former pro player, Rodney became the only African-American man besides Arthur Ashe to reach the quarterfinals at the US Open (1982). As Head Men’s Tennis Coach for the University of Miami, Rodney was named the Big East Men's Tennis Coach of the Year in 1996 and 1997, was named PTR Professional of the Year in 1988, and PTR Coach of the Year in 1994. A graduate of Southern Methodist University, Rodney is in the ITA Hall of Fame.
Jack Waite • Treasurer
Jack is a native of Wisconsin and a graduate in Industrial Engineering from the University of Wisconsin. After earning Big Ten Player of the year honors in 1991, he embarked on a 10-year professional tennis career where he reached a career high ATP world doubles ranking of #44. He accumulated doubles wins over Roger Federer, Boris Becker, Patrick Rafter, Michael Chang, Goran Ivanisevic, Thomas Muster, and the Bryan Brothers among others, as well as a singles win over Tim Henman. He won ATP Tour Event Doubles Titles in Palermo, Italy (1994), Auckland, New Zealand (1996), and Marbella, Spain (1996). After retiring from the pro tour, Jack helped found Le Petit Tennis, a company that specializes in teaching tennis to young children around the world. He has worked as a Tennis Professional at Woodfield Country Club in Boca Raton, Florida and as Tennis Director at the Oconomowoc Lake Club in Wisconsin. As the former Director of Development for PTR, a company that trains and certifies teaching pros, Jack oversaw the certification program for the US and Canada. Currently, he serves as Director of Racquet Sports at Burning Tree Country Club in Greenwich, CT where he oversees the tennis and platform tennis programs. He holds the PTR Tester rating, the United States Professional Tennis Association P1 rating, the Professional Platform Tennis Association P1 rating, and has completed training in Cardio Tennis and USTA High Performance. In 2009, he was named the Connecticut PTR Member of the Year. His volunteer service includes roles as a representative on the ATP Player Council (2000-2002), the USOC Athletes Advisory Committee (2002-2004), the USTA Nominating Committee (2005-2008), Chairman of the USTA Pro Circuit Committee (2009-2014) and member (2015-present), as well as Chairman of the PTR Education Committee (2016-17).
Delaine Mast • Vice President
Delaine Mast, Lancaster, Pennsylvania, has been National Director of WTT Community Tennis and inner city high school boys' and girls' tennis coach since 1986. Mast has become a household name within the tennis community and embodies the slogan "growing the game”. She is the Executive Director of Tennis Central, an NJTL chapter that combines tennis and learning to change lives and serves more than 2,000 Lancaster youth. Mast served as President of USTA Middle States, and was later appointed as USTA National Chair of the USA Tennis 1-2-3 Committee. In 2010, she was elected to the USTA Board of Directors and was the Vice Chair of the Strategic Planning and Creative Opportunities Committee. Mast was inducted into the USTA Middle States Tennis Hall of Fame, received the USTA Eve Kraft Community Service Award. A PTR member for 25-plus years, Mast is prior Chair of PTR Women’s Committee, who in 2017, received the International Tennis Hall of Fame Educational Merit Award and Tennis Industry Magazine’s Grassroots Tennis Champion of the Year.
Lucy Garvin • Director at Large
Lucy Garvin is a Past President of the USTA, USTA Southern and USTA South Carolina. Garvin had many accomplishments as USTA President from 2009-10, but the one that stands out was her establishment of the Strategic Vision Committee to develop a long range plan for the USTA Billie Jean King National Tennis Center, including a roof for Arthur Ashe Stadium which is now a reality. Garvin went on to serve two terms on the ITF Board of Directors. In her second run for office, Garvin became the first female ever to finish at the top of the balloting. For her distinguished service, Garvin was unanimously elected as an ITF Honorary Life Counselor. Garvin currently serves on the ITF Rewards and Recognition panel.
Martin Van Daalen • Director-at-Large
Martin has been coaching for more than 35 years, currently as the Director of Programming for Miami Beach Tennis Center and Academy. Before moving to the USA, he was a National Coach and Director of Women’s Tennis in Holland. Martin worked with top players, including Pete Sampras, Jim Courier, Jennifer Capriati, Mary Pierce and Jared Palmer, at Sadddlebrook Resort in Florida. For more than a decade, Martin served as a National Coach for the USTA. In 2013-14, he worked as Director of Player Development for the Finnish Tennis Federation. Martin also wrote two books: Teaching Tennis Volume 1 The Fundamentals of the Game and Teaching Tennis Volume 2 The Development of Advanced Players.
Dennis Van der Meer • Founder/President Emeritus
Legendary coach and teacher of teachers, Dennis is the founder and president of the Van der Meer TennisUniversity. Known worldwide for his innovative teaching techniques, he has received numerous awards for teaching and coaching, including being named Olympic Developmental Coach of the Year in 1997. He has been inducted into many Halls of Fame, and was awarded an honorary doctorate from the University of Greenwich, England. Dennis became one of the first registered coaches of both the ATP and WTA, and has coached hundreds of nationally and internationally ranked professional and junior players throughout his career, including World Champions in Singles and Doubles. In 1973, he was Billie Jean King’s and Margaret Court’s coach for the landmark Battle of the Sexes. A believer in the concept of tennis for everyone, he developed courses and manuals for teaching wheelchair tennis and adaptive techniques. Dennis has always had an uncanny knack for finding the best, most efficient way to help players reach their maximum potential, a trait he has imparted to his staff coaches.