Board of Directors

Karl Hale • President
Karl has an accomplished tennis history. He played competitive tennis internationally, participating as a player and a coach in Davis Cup for Jamaica and as a Fed Cup Coach for Canada. In 2006, Karl was named PTR Professional of the Year. As a player, Karl was the World #1 in over 40 in 2007 and was awarded PTR Player of the Year in 2010. Now Karl serves as the Tournament Director for the prestigious Rogers Cup, presented by National Bank which is the largest one week tournament in the world with past champions, Rafael Nadal, Roger Federer, Novak Djokovic, Simona Halep and Serena Williams. Along with his duties at the Rogers Cup, Karl founded the Daniel Nestor Charity Event which raised over $1,000,000 for North York General Hospital and Tennis Canada Go for the Gold Fund. Karl also founded the Helping Hands Jamaica Foundation which raised over $500,000 in his native Jamaica while building 5 new schools. For his extensive work with Helping Hands, Karl was named PTR Humanitarian of the Year in 2017. Most recently Karl was the host of the successful PTR Hour. His insightful and fun interviews, gave coaches an inside look at the most exciting names in tennis.
Ken DeHart • Secretary
Ken DeHart, San Jose, California, is a PTR Charter Member and former PTR Executive Director. He is one of the original 8 PTR International Master Professionals, the initial President of the International Master Professionals and along with Dr Jim Loehr, one of the first dual Master Professionals in both the PTR and USPTA. Ken is a 2 time PTR International Pro of the Year. He is a certified professional in 10 & Under, 11-17, performance, adult certification and a PTR National Tester. Ken is a Red Diamond Career Education member and Co-Director of the NorCal Regional Center. Currently, he is Director of Tennis at Silver Creek Valley Country Club. DeHart co-wrote the "International Book of Drills" with Dennis Van der Meer, authored "Master Your Tennis Game - 50 Mental Strategies and Tactics" has had numerous articles published in tennis magazines, websites and Facebook pages in addition to producing seven coaching DVDs on drills, strategy, tactics and mental skills development. He is a Wilson Premier Advisory Staff member, speaker for Wilson and a USA High Performance Coach. He has presented at the Australian Open, Wimbledon and US Open Coaches Conferences on many occasions as well as most all divisions across the USA. DeHart has earned several PTR Championships in both singles and doubles in all age groups as a player, a 2 time gold medalist at Huntsman World Senior Tennis Games and bronze medalist at the Nike World Senior Games. He has been USTA NorCal Volunteer of the Year, NorCal Eldon Campbell Player of the Year, 12 Zonal Coach and National Trainer for Developmental Coaches.
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. Leo currently hosts the PTR Hour en Español featuring insightful interviews with current players and coaches.
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 which appeared on the Tennis Channel. And Lynne recently helped host the PTR Hour interview series. 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. In 2020, Rolley was elected to serve on the USTA NorCal Board of Directors.
Hemel Meghani Cosme • Director at Large
Hemel is a native New Yorker with more than 35 years of teaching, coaching, operating and owning one of the largest tennis facilities in New York. Hemel is a graduate of University of California – Santa Barbara where she was on a tennis scholarship. Hemel has worn many hats as a junior player, college player and pro player on the WTA Tour. Most recently she has been a Director of Tennis and business owner. She managed one of the biggest public tennis facilities - Central Park Tennis Center for over 10 years in which during her tenure was awarded the prestigious Public Facility of the Year Award by PTR. For the past 20 years Hemel has owned and operated Alley Pond Tennis Center a 16 court indoor/outdoor public facility in Queens Village, NY. Alley Pond Tennis Center recently became a UTR facility. She has served on the USTA Eastern Metro Board as Treasurer. Hemel recently incorporated and embraced an extensive Pickleball program. She is a certified PPR Pickleball Coach and has hosted PTR and PPR Certification Workshops for her staff and tennis community.
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, Delaine was named Pennsylvania, Member of the Year 2011, she served as Chair of PTR Women’s Committee, and in 2017, received the International Tennis Hall of Fame Educational Merit Award and Tennis Industry Magazine’s Grassroots Tennis Champion of the Year.
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, 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.
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.
Ron Manilla • Director at Large
Ron Manilla is a PTR International Master Professional. Ron has been teaching and coaching tennis for over 40 years. Ron was the Director of Tennis at the Boars Head Sports Club for over 12 years. He managed this nationally-recognized facility with 12 indoor, 10 Har Tru and 4 outdoor courts. Boars Head Sports Club was awarded the 2000 and 2020 PTR Facility of the Year. During his time, Ron created a Junior Elite Program which produced collegiate level athletes. Now Ron serves as the Tournament Director at Boar’s Head managing aspects of WTA, ATP and ITA tournaments as well as Special Olympics competitions and USTA Sectionals. Ron is the Past President of the Charlottesville Tennis Assn in which he’s been active on for over 40 years. Ron is currently a USA Special Olympics National Coach.
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.