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  • *Under 18 must be accompanied by parent or legal guardian.

  • *Under 18 must be accompanied by parent or legal guardian.


1044 West Covina Pkwy
West Covina, California 91790

About the team

  • 9Round trainer
    Mariana "Mighty Mouse" Rios
    Mariana Is a Kickboxing fitness instructor for the 9Round Team in Pasadena and West Covina CA. She is passionate in motivating and challenging members to their full potential. Mariana has been in the fitness lifestyle for about 5 Years and is constantly learning and growing. Her thrive is to create an upbeat environment while encouraging positive thinking and positive results. One of her greatest satisfactions is knowing that she has made a positive difference in someones life.
  • 9Round trainer
    Martina "KiKi" Aguilar
    Martina A.K.A "KiKi" has been boxing for over 11 years and has been in several boxing competitions. She also has experience in training members on a one on one basis as a former Personal Trainer for a well known Fitness Center. She finds passion in aiding members achieve their fitness goals and teaching proper boxing/kickboxing technique. Her passion for boxing/kickboxing really stands out when she is holding pads.
  • 9Round trainer
    Eric "Eagle" Espinoza
    Eric " Eagle" Espinoza as a Co-Owner/Trainer does his best to challenge his members to capabilities that they never thought they would reach. He truly believes that any weakness can be turned into a strength and he aims to not only empower members physically, but also mentally.
  • 9Round trainer
    Yolanda "Yolie" Rivas
    Yolanda is extremely passionate about fitness. She has been working out for about 6 years and received her certification in personal training in 2017. Her son who is 6 months old is her motivation. He pushes her every single day to be better and to better herself. Yolanda's goal is to continue to expand her training abilities with 9Round and to help others achieve their fitness goals 9Rounds at a time. On her time away from the gym, she is training privately so each day she progresses in her abilities to better others physically and mentally.
  • 9Round trainer
    Art "Speed Stack" Espinoza
    Art "Speed Stack" is a proud US Navy Veteran and father who Owns & Operates 9Round West Covina. At a very young age he has always raised the bar above expectations so if he ever fell short, he knew he would still be high up there. He holds a Bachelor's in Business Management with a concentration in Finance from Woodbury University, CA and an MBA from the prestigious Gradzidio School of Business from Pepperdine University located in Malibu, CA. At a very young age he has also been into fitness and in living a healthy life style. He has about seven years in both boxing and combat experience. Through both his life and military experiences, Speed Stack, has found great satisfaction on knowing he has made a positive impact on someones life. Now he is very grateful that he is able to make a positive difference in hundreds of people through running a fitness center. Art truly cares about his members as well as his 9Round Team. When he is not working, he is spending time with his wife, kids, and family which includes two very friendly large german shepherds.