HAT is the highest rated junior tennis program in Colorado and we have been providing players of every age, at every level and ability, fun, positive and supportive camps, group and private lessons since 2009. Hey! My name is Brent Mazza, and I am the Owner and Director of Tennis at HAT. Tennis is my true passion in life.
I am originally from Southern California, but I went to college in Massachusetts at Boston University. Hi! My name is Maryann Christensen and I'm the Executive Assistant and After School Program Coordinator at HAT. I work mostly behind-the-scenes - my many duties include scheduling the after school programs.
I am originally from Southern California, but I went to college in Massachusetts at Boston University. Hi! My name is Maryann Christensen and I'm the Executive Assistant and After School Program Coordinator at HAT. I work mostly behind-the-scenes - my many duties include scheduling the after school programs.
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Tennis is my true passion in life. I am originally from Southern California, but I went to college in Massachusetts at Boston University, where I earned my bachelor's degree in Business Administration. Prior to my time at HAT, I gained invaluable tennis industry experience working for the International Tennis Hall of Fame in Newport, Rhode Island, the Boston Lobsters' World Team Tennis Franchise, and for the Champions Tour.
Imagine a car ride home from camp where your child is excited about what they just learned and can't wait to share it. Inspirational, international, charismatic, coaches who care about your childs wellbeing and are experts in fun. Let the fun begin! Kids will have a great time with our awesome, knowledgeable coaches who are experts in FUN!
HAT has been delivering FUN, conveniently located, and the highest-reviewed programs in the Denver Metro Area for kids 5-18 years old since 2009. The HAT secret to creating a unique community environment where students of all levels and abilities are excited and inspired is our team of rock star coaches who are not only fun, but really know their stuff (we call it edu-tainment)!
HAT provides fun After School Enrichment programs at elementary schools throughout Denver. Our awesome coaches bring all the supplies and fun needed for a great tennis experience! Your child must be a student at the school in order to enroll in the program. Registration is done through the school, unless otherwise noted.
Reviews (10)
Carlton Willey
Jun 21, 2021
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Migdalia Morillo
Oct 04, 2020
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Karen Steinmark
Dec 23, 2014
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M. Chowdhury
Nov 28, 2014
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High Altitude Tennis is an outstanding competitive junior program. My daughters absolutely love this program and as a parent I am extremely happy with their improvement. The coaches are all very knowledgeable and willing to help whenever needed. I would highly recommend this program for the junior player who is ready to work hard and ready to rise to the next level. Remember this program is not for everyone. This program is geared for the junior who is ready to work hard with a positive attitude. If you are selected for this program, you will be marching towards success.
Steven Stokes
Nov 27, 2014
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I took lessons at HAT for about six months from Ryan and from Brent and also worked out with their trainer Michael. It was the best training I have ever had in tennis. First I had to unlearn all of the bad habits from childhood lesson taking and then re-learn the strategies they teach. I found them to be prepared for my lessons, interested in my success, happy for the connection and overall a wonderful place to take lessons. Thanks HAT for improving my tennis game, making me stronger off the court, and for helping me feel good about my game again.
Nancy C.
Nov 20, 2014
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Our son has attended High Altitude Tennis for several years and we have been very happy with the whole experience of the academy. Our son has been able to receive comprehensive tennis instruction in a structured, yet fun, and safe environment. The fitness and tennis instructors have provided him with all the help and inspiration that he has needed to achieve his personal goals. This environment is by far the best that we have experienced in the many years that he has been learning the game of tennis.
Karen Strode
Aug 20, 2014
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My daughter has been attending HAT for a few months and absolutely loves it! The coaches are great and motivate the kids to work hard and do their best. They have taught her how to overcome challenges that she will use on and off of the court. Not only do they support the children but the parents receive support and guidance as well. We are very thankful that we found this program.
Rachel Davis
Jun 17, 2014
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Ryan and Leslie Segelke are two of the finest people I know. Manager of Operations and Fitness Expert Michael Farrington is exceptional. With integrity and real caring and concern they go above and beyond what would be expected to support their students. While their business is focused tennis and academics success, they assist students in succeeding in all areas of their life.
Ben W.
Jun 15, 2014
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High Altitude Tennis is the best place in Colorado for competitive juniors to develop their tennis game. It is not for everyone, so if your child is only looking to play for fun put them in a recreational program. HAT is dedicated to developing high level junior players looking to take tennis to college and beyond. With the great coaching not only in tennis, but also in conditioning, mental toughness and nutrition this is the place to send your kid if they are serious about tennis!
Sara Crowe
Jun 15, 2014
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My experiences with High Altitude Tennis have never been anything other than 100% positive. The owners are knowledgeable, kind, and hard working. The staff is well trained, professional and experienced. I took personal training lessons from Michael and found him to be just what I needed. He was firm, kind, and helped me be a better version of me.
