Doug MacKinnon

Over 30 experience in Boxing and martial arts. Has competed in amateur boxing, Muay Thai and Ju jitsu. Became a personal trainer specializing in boxing, kickboxing and general fitness in 1998. Has trained everyone from special needs children to professional athletes. Helped develop and build some of the most successful kids boxing programs in South Florida. He has also trained numerous amateur boxers, and pro MMA fighters. In addition to his extensive athletic experience he has also worked with at risk youth in both schools and juvenile facilities in LA, Boston and Miami. His other hobbies include, playing drums in punk rock and hardcore bands, surfing, and collecting classic Chevy lowriders. He and his partner Erik Sandin opened Long Beach United Boxing Club in 2013 to help serve the community they both love. He runs the kids program and also teaches many of the adult boxing classes.


Jesse Sezner

Jesse Senzer is a Certified Personal Trainer through the National Academy of Sports Medicine (NASM) and a USA Boxing certified Coach. She has a combined 30 years of martial arts experience, the last 20 focused primarily on boxing. She started at age 8 with Tae Kwon Do, and moved on to Karate in middle school, earning her black belt at age 13. She wrestled in high school, and trained Jiu-Jitsu and MMA on and off through college. She began her boxing training at 18, and has trained in Oregon, California, and internationally. With an approachable and motivating teaching style, she focuses her group classes and private lessons on boxing fitness and sound fundamentals. Success is judged by the puddles of sweat left on the floor, and your desire to keep coming back for more.


Isaiah Green

Isaiah Green is from Garland, Texas. He has been around the sport of boxing since the age of 4, sparring and training fighters. Isaiah Green had the privilege of training under the tutelage of Robert Garcia and Floyd Mayweather Sr learning the sweet science. Isaiah Green is also an avid book reader, marathon runner and enjoys outdoors biking in his free time.


Taryn Roberts

14 yrs experience. Specializes in Muay Thai, 12 fights, 10 Muay Thai and 2 MMA. Trained in Krav Maga and works with the LAPD. State Certified Domestic Violence and Sexual Assault Counselor.


Kiira Kristiine

Holds a 200hr Yoga Teacher Certification. Kiira’s yoga journey began in 2010. As she began to feel the transformation yoga had in her life she felt inspired to share the gift of yoga with others. Kiira believes the mind, body, soul connection is a sacred one, and one that should be nurtured and inspired. With that mentality she teaches her classes from her heart creating an uplifting, safe environment for students to begin to explore and expand within their own body and consciousness.