TENNIS 101 - specializing in high quality private and group tennis instruction for adults and children in Orange County, California
Tennis Intensives - Instructors
TENNIS 101 - specializing in high quality private and group tennis instruction for adults and children in Orange County, California
Todd Granius
Todd Granius grew up playing competitive tennis in Green Bay, Wisconsin achieving top
rankings in both singles and doubles, playing four years of varsity high school tennis and
participating in NCAA collegiate tennis at the University of Wisconsin - Eau Claire (Division
III).  Following his graduation from college in 2000, Todd pursued a career in the tennis
industry, working for the tennis divisions of both Wilson Sporting Goods Co., and adidas,
America. Todd currently serves as an independent sales representative for various tennis
industry manufacturers, including Asics, Little Miss Tennis and Tourna.  

Todd served as the assistant tennis coach at Saint Ignatius College Prep in Chicago and
assistant tennis coach for Laguna Beach High School as well as instructing juniors at tennis
camps in the Chicago and Southern California areas.  Todd has played tennis on USTA
men's and mixed teams and continues to enjoy playing tennis competitively as an adult.
Certifications:  High School Coach - California, Illinois.
Memberships:  USTA Lifetime, past USRSA member.
Affiliations:  Asics Advisory Staff/Territory Manager - PacNW, Intermountain and Southwest sections of USA.
Greg Langdon has been teaching tennis in southern California for over twenty five years.
Born and raised in Auckland, New Zealand, Greg's career as a tennis instructor began in
1983, as manager and assistant pro of the Beverly Hills Tennis Center. Two years later he
became Head Professional.

In 1986, Greg’s reputation as a specialist in teaching the fundamentals of tennis continued
to grow quickly. With a burgeoning clientele, he formed his own tennis instruction company,
Langdon’s Professional Tennis, which he operated in Beverly Hills and West Los Angeles
until his relocation to Orange County in 1992.

In 1993, he was then appointed Executive Director of the California Division of the
States Professional Tennis Association (USPTA) the national trade association for tennis
Greg Langdon
in private and group instruction for beginning adults and children. That same year, he was appointed Director of
Tennis for the
Aliso Viejo Community Association tennis program in the city of Aliso Viejo, one of the first
recreational programs developed for the new city, offering year-round instruction for groups of all ages and levels,
After School Tennis and Tennis Intensives, for competitive juniors.
teaching professionals. Among the many accomplishments during his three-year tenure, he created and published
'ProFile', the bi-monthly divisional newsletter, and created and coordinated the inaugural Southern California Tennis
Convention. In 1994, he received the highly coveted
Professional of the Year award.

In 1995 he founded
TENNIS IOI, an independent tennis instruction business in south Orange County, specializing
In 2009 he created the TENNIS 101 subsidiary, OC Tennis Camps offering summer tennis camps
for Beginning, Intermediate and Advanced level children of all ages, plus the highly popular Tennis
Team Boot Camps, the ultimate preparation for high school and tournament level tennis
Throughout his career, Greg has built a formidable reputation and successful business on his patient and dedicated
work with children, and his care and attention to detail when working with adults.
Certifications:  USPTA Elite Professional; PTR, Affiliate Member
Affiliations:  United States Tennis Association, Lifetime Member        
Sponsorship:  Babolat National Team member, Asics Team Member
Hai Nguyen
Hai grew up playing junior tennis in Houston, Texas and received the Houston Tennis
Association Coca-Cola Scholarship while attending the University of Texas at Austin
(Division I) and graduated with a B.A. in Business Administration and a B.S. in Biology. He is
a highly accomplished professional with 25+ years experience in the tennis industry playing,
coaching, and managing.

Over the course of his career he has had roles as Assistant Manager at The Tennis Place in
Los Angeles, a semi-private club with 16 courts, pro shop, and full service café. He also was
General Manager at Tennis LA,  a member-based exclusive club with 8 courts, full-service
gym, junior Olympic pool, and highly recognized for it’s junior excellence program that has
produced over 20 top-ranked juniors in southern California.
Certifications:  USPTA - Professional 1.
Memberships:  USTA, USRSA past member.
Hai presently owns and operates AYTE (Adult and Youth Tennis Enterprises) as well as Innovative Tennis, a tennis
accessory manufacturer. In 2002, Hai licensed “Vibrafun” vibration dampeners to Wilson Sporting Goods which is
now sold all over the world. He is a USPTA certified pro and a former USRSA member.

Hai loves to teach tennis because he wants to share his passion for the game that has blessed him with so many
opportunities. “There is nothing more rewarding than going from teaching a 4 year old and in the next hour you are
hitting balls with a 92 year old man. This is truly a sport for all ages and gender.”