Walter Preidikman, also known as Gringo, the Argentinian, was born in Buenos Aires on August, 7th, 1963.

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At a young age he attended college in the USA on a tennis scholarship at the University Of Houston, setting foot on a path which is now the roots of Tênnis Route.

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As a junior player he competed in tournaments such as the Orange Bowl, Banana Bowl, and the North American Junior circuit. After becoming a pro, he took part in ATP satellite circuits in Brazil, Europe and USA.

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While in college, he noticed his teammates would frequently ask him for advice and tips, he realized he could start a career as a coach. He took the challenge of coaching his then teammate, Dácio Campos, for the tours.

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Since then, he has worked in several world wide known training centers such as the Nick Bolletieri Tennis Academy, Bradenton, Florida Rod Lavers Academy, Boca Raton, Florida among others.

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Over the course of his career, Coach Walter has conducted clinics and athlete development programs across multiple countries, including Brazil, the United States, Argentina, and China, bringing world-class training to players and coaches at every level. He is also the author of "Game Set Match," a biography that offers an inside look at his life and journey in professional tennis. (Currently available in Portuguese.)