
Weil Coaches
Jim Westfall, Head Coach
Jim grew up in Davis, California. He was ranked in the Top 30 in Northern California as a junior player and received a tennis scholarship to Utah State University. After playing #1 singles his sophomore year, he transferred to Michigan State University where he played two seasons for the Spartans and graduated with a B.A. in Political Science.
In 2006, Jim began working as an Assistant Tennis Professional at the Natomas Racquet Club in Sacramento. While on staff, he assisted with the development of the junior program as well as taught private and group lessons.
In the year 2000 Jim was ranked #1 in 5.5 singles in Northern California and was named the NTRP Player of the Year.
Jim can be reached at Jimwestfall@hotmail.com
Takeshi Ozaki, Director of International Marketing & Coaching Consultant
Coach Ozaki, originally from Tokyo, Japan, was ranked number three in his section while a college student in Japan. He coached in Tokyo for six years and was director of Lavoy Pacific College (Sports College) from 1990-1993. He also developed the BETA (Briscoe Eisendrath Tennis Academy) in Washington where he served as director for eight years. Before joining the Weil Tennis Academy, he directed the Pacific Tennis Academy.
In addition to coaching, Ozaki travels to Japan regularly to recruit students for a new Asian Training Program at the Weil Tennis Academy. So far, the Weil Tennis Academy has enrolled 12 students from Japan.
Coach Ozaki can be reached at tennis@takeshiozaki.com
Ognyan (Ogi) Katsarov is from Bulgaria, He worked for the Bulgarian Fed Cup Team as Assistant Coach from 1999-2003 and Head Coach in 1995, 1996 and 2004. Ogi has also coached the likes of Magdalena Maleeva, along with three players in the top 150-250 in the WTA, ten Bulgarian National champions and a 3rd place in the Orange Bowl.
Ogi graduated from The Higher Institute of Physical Education specializing in Tennis and Pedagogic Profile. As a tennis player, he participated in the National Team of Bulgaria, ranked 5th place on in the Men's National Team and placed 1st in Tier I Doubles in national tournaments.
Ogi's coaching career began in 1980 in his home town of Plovdiv where he also lectured from 1983-1989. He coached for the Locomotiv-Stad Tennis Club and in 1991 became a coach for Bulgaria's National Women's Team. Ogi is married to Vesalina Katsarova. Their son, Bozhidar Katsarov was top 20 in ETA in 14s.
Ogi can be reached at ogi@weiltennis.com
Charles Irie, Head Coach

Head Coach Charles Irie joined the Weil Academy Coaching Staff in mid 2008 after graduating from Fresno State University with a Bachelor’s Degree in Mass Communication and Journalism (Public Relations). Charles competed for the Fresno State Bulldogs Men’s Tennis Team from 2004 to 2008 on a tennis scholarship where he played in the top 4 in the team lineup.
Charles is originally from Abidjan, Ivory Coast, where he began playing tennis at the age of 10. Charles achieved a career junior high ranking of #67 ITF, and #1 junior in the Ivory Coast. Charles also is proud to have represented his country as a member of the Ivory Coast Men’s Davis Cup team since 2003.
During his junior career, Charles had the privilege to compete in prestigious junior international tournaments such as Wimbledon, Eddie Herr and Orange Bowl. While a junior, he has also competed against top ranked ATP players such as R. Gasquet, J.Tsonga, R.Nadal and M.Baghdatis. Charles has won several Junior Championships around the world including an ITF Gr2 in South Africa and was Runner-up at the 14& under 2001African Championships.Charles has four brothers and two sisters, and is married to Eszter Irie.
Charles can be reached at iriecharles@yahoo.fr.
Patrick Muller, Fitness Director
Patrick is originally from Strasbourg, France. He has been working at the Weil Tennis Academy since the summer of 2006. Patrick has been studying Sports Science for 5 years and graduated with a Master's Degree in Strength and Conditioning from the University of Strasbourg, France. His main focus of study was sports performance. He specialized in all the fitness components that an athlete needs: strength, speed, endurance, agility and flexibility.
Patrick has played tennis since he was very young and he has coached tennis for the last several years. Patrick completed several internships in the strength and conditioning field before coming to Weil. He has worked with professional soccer and rugby teams in France and has also worked with young basketball and badminton players. Patrick started his tennis career with an internship in the French Tennis Federation with the top 6 14/16 year old players. He has also worked as an Assistant Strength and Conditioning Coach at Evert Tennis Academy in Florida.
Patrick can be reached at patrick@weiltennis.com
Florencia is originally from Argentina where she was ranked Top 6 in the country in under 12, 14, and 16. She came to the US to play D1 tennis on a full scholarship at the University of North Florida where she earned an all-conference recognition, as well as MVP and Student Athlete of the year.
She graduated in 2007 with a B.A in Psychology and shortly after she started her full-time coaching career as head coach at the 6th Sense Tennis Academy in FL where she worked with sectionally ranked players, as well as, top ranked ITF junior players. She traveled to National and International tournaments assisting these junior players in ITF G4, G3, G2, and G1. While at 6th she received an extensive education on the European mini-tennis (quick start for 10 and under), and a high quality education on tennis biomechanics and high performance coaching provided by former members of the Belgium Federation.
She has worked with many Top WTA , ATP and ITF coaches such as, Carlos Rodriguez, Liam Smith, and the fitness legend Pat Etcheberry, just to name a few.
Florencia has gained many valuable skills to coach effectively a broad range of players of different ages and levels. She has been a Professional member of the PTR since 2006.
Florencia can be reached at florencia@weiltennis.com
Stephanie Harmazy is originally from British Columbia, Canada where she played Junior Tennis and was ranked in the top 10 in BC in Girls 18s. Stephanie was recruited and played Division 1 tennis at Eastern Illinois University on a full tennis scholarship where she majored in Exercise Science. Stephanie went on to achieve her Masters Degree in Human Kinetics from the University of British Columbia.
Stephanie is a Certified Strength and Conditioning Coach through the National Strength and Conditioning Association. She has also completed internships working with junior athletes all the way up to professional athletes in a variety of different sports. Her passion for tennis and Strength and Conditioning combined, has given her a unique specialization to enhance any tennis player to another level.
Stephanie can be reached at Stephanie@weiltennis.com
Allen Fox, Ph.D. earned a B.A. degree in physics and a Ph. D. in psychology from UCLA where he played college tennis and won he NCAA Singles and Doubles Titles. Dr. Fox wrote the best sellers, If I'm the Better Player, Why Can't I Win?, Think to Win, and most recently The Winner's Mind.
With the same competitive zeal that propelled him to the number four ranking in the United States, to the quarterfinals at Wimbledon and a 3 time member of the US Davis Cup Team, he became an investment banker and eventually ran his own investment company. Dr. Fox went on to own and operate several successful small businesses while coaching the highly-ranked tennis team at Pepperdine University, mentoring, among others, super-achiever and motivator Brad Gilbert, the renowned coach of Andre Agassi and Andy Roddick. Dr Fox's Pepperdine teams were ranked in the Top 5 for 10 consecutive years and reached 2 NCAA Team Finals.
He currently consults and works privately with professional athletes on the mental issues of competition and travels worldwide to lecture on competition psychology. He lives in San Luis Obispo, California, with his wife, Nancy and two sons, Evan and Charlie.
Stacy Margolin Potter, M.A., C.E.D.S., was a professional tennis player from 1977-1987. With victories over many top ten players, she reached a World Ranking of #18. While attending the University of Southern California, she won the National Collegiate Singles Title as a freshman. She was also a member of the U.S.C. team that won the N.C.A.A. title the following year, playing the #1 singles position. Coming off the tour, Stacy coached the Woman’s Tennis Team at Pomona College. She then completed her studies at U.C.L.A. and received her Masters Degree in Clinical Psychology from Pepperdine University. Stacy worked at the Rader Institute for twelve years as an Eating Disorders Counselor and has been certified as an Eating Disorders Specialist since 1998. Presently, Stacy now resides in Ojai, Calif., and operates a counseling service, specializing in nutrition, eating disorders, stress management, eating and exercise behavior, body image, relationships, and motivation. She also performs body composition testing, weight training sessions and fitness consultations.
On the physical side, Stacy and her husband Ian operate “Trails By Potter”, a hiking, climbing and biking tour service throughout the Ojai Valley and Ventura for the past 11 years. Stacy continues to be involved in the tennis world with occasional
coaching and charities. She is the host of The Ojai Valley Tennis Marathon, now in its 11th year, which raised money for the
Ojai Youth Foundation.
Stacy can be reached at ojaipotter@aol.com.