Our Coaches

 
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Marcos Ondruska,CEO and Director of Tennis

Prior to Marcos's coaching career, he traveled on the ATP tour, where he reached a career-high singles ranking of #27 in the world and #34 in the world in doubles. He competed in more than 48 Grand Slams and reached the Round of 16 in the Australian Open in singles as well as the doubles semifinals. He reached three ATP tour event finals and won four doubles titles during the course of his career.

Ondruska maintains two wins over world No. 1’s and boasts additional wins over tennis legends such as Michael Chang, Brad Gilbert, Petr Korda and Wayne Ferreira. He competed on behalf of South Africa at the 1996 Olympics and played on South Africa’s Davis Cup team for eight years, where he currently serves as captain.

Click here for information on private lessons with Coach Marcos.

 
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Mary Bowen,
Director of 10 and Under and Recreational Tennis

Mary Bowen has a true passion for teaching tennis and has taught students ranging in age from 3 thru 86. “I find I am particularly adept teaching new students but also love working with small groups of adults up to the 3.5 level.” Mary has been teaching tennis for over 11 years and was previously employed at the Little Rock Athletic Club in Arkansas before relocating to the Pacific Northwest.

Mary’s approach to teaching tennis is structured and methodical. While she emphasizes the technical aspects of stroke production she believes “ultimately, fun and enjoyment is the key to success. If my students don’t leave the court with a smile and wanting to come back, then I haven’t done my job.” With a strong background in Sport Psychology, Mary is skilled at determining the best methods to reach individual students to help them grasp a concept. Mary also has experience working with special needs children individually and in groups.

 At RTC Mary will focus on developing the 10 and U program within USTA youth progression guidelines as well as establishing a program for recreational tennis for teens and beginner adults. “Kids, especially the young ones keep me on my toes. They express things so simply and their excitement is infectious. Watching their passion grow for the sport I love keeps me coming back every day.”

Click here for information on private lessons with Coach Mary.  

 
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Jack Streeter

Jack Streeter grew up in London and began playing tennis at eight years old. After thriving at the high-performance level himself, Jack has firsthand knowledge of what it takes to reach your highest potential and recognizes how striving for excellence can shape your character and way of life. He embraces cross training and believes it's key in becoming a better athlete.

Jack is extremely passionate with what he does, and wants to help you reach your goals, on and off the court.

Click here for information on private lessons with Coach Jack.

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Mark Shkrebtan

Born in Moscow, Russia, Mark came to America at age three and started playing tennis by age five. He paved the way as a top-ranked junior in the Pacific Northwest before playing Division-I tennis at Seattle University, where he competed in the #1 singles and #1 doubles positions all four years.
 
Mark has been coaching and developing junior programs since he was 15 years old. He has coached with Scott Shogreen, Vitaly Gorin and at various facilities, including the Pro Sports Club and Central Park Tennis Club.

Click here for information on private lessons with Coach Mark.

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Rudolf Kischel

Rudolf's coaching career started in Latvia as the head coach at Tennis Club Dynamo, where three of his students became members of the national Latvian team. After moving to the U.S., Rudolf worked as a high school tennis coach for 10 years. He also ran a private tennis school where many of his students developed to become nationally ranked junior and collegiate players.

Rudolf is a certified tennis USPTA and PTR tennis instructor and currently runs the Dot Excellence program at RTC. With 38 years of experience, Rudolf has developed a teaching style that rapidly creates high-level junior players.

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