John Letts

Owner, iTennis

A former Stanford All-American, U.S. Junior National Champion and ATP player and coach, John has been involved at the highest levels of tennis for over 40 years. After creating the largest tennis management company in Southern California with six facilities and thousands of students, John decided to turn his attention to creating the #1 academy in Southern California, founding the iTennis Performance Center in 2016. John’s dream is to recreate the magic of his junior development days, where at his home training ground, the Jack Kramer club, a small tight-knit community produced three #1 in the world players (Pete Sampras, Lindsay Davenport and Tracy Austin) as well as numerous top twenty ATP and WTA tour players (Derrick Rostagno, Kimberly Po, Eliot Teltscher and others).

Selwyn Brereton

Executive Vice-President, Co-Owner iTennis La Habra, Cerritos & La Mirada

Selwyn Brereton has been an integral part of iTennis since the beginning. In addition to oversight of iTennis facilities, technology and maintenance functions, Selwyn also serves as Co-Tournament Director for the annual iTennis Gemdale USA Pro Open, an ITF Pro Tour $30K event with equal prize money for men and women held at iTennis Arcadia. Selwyn also is a highly-rated USTA tournament referee and line judge, often seen on-court at BNP Paribas Indian Wells and US Open Tour events!

Genya Trosman

Executive Director of Tennis, Co-Owner iTennis La Habra, Cerritos & La Mirada

Genya Trosman oversees all iTennis teaching staff, on-court programming for adults and juniors, product inventory and pro shop operations at all iTennis locations. As a USPTA-certified Elite Teaching Pro, Genya brings decades of tennis industry experience to his private clients and group clinic participants on a daily basis at iTennis Arroyo Seco in South Pasadena.

John Nguyen

Teaching Pro, USPTA

Played #1 singles and doubles at Cal Poly San Luis Obispo from 2003-2006. Graduated with a bachelors degree in Business Marketing. Was ranked top 50 in the nation in NCAA men’s division I tennis. Has 10 years of full-time coaching experience. Provided motivational coaching as well as detailed skills instruction for many top southern California juniors into college. Former ATP professional.Has won many local mens open titles and is a USPTA Certified Tennis Instructor.

Private Lesson Rate
$40 per 1/2 hr; $75 per 1 hr

Lucero Ramirez

Front Desk

Lucero joined iTennis La Habra December 2020. She was raised in South El Monte, CA and is a current student at CSUF majoring in Business Administration with a concentration in General Management and will graduate May 2022. Lucero also played tennis for 3 years in high school. She plans on owning and managing a business of her own in the near future.