Dave Jalbert

Dave Jalbert is a Level 2 Coach and Affiliate Owner of CrossFit Insanity. Dave graduated from Cal State University Fullerton with a degree in Exercise Physiology in 2002. After graduating from college, Dave became a Certified Strength and Conditioning Specialist through the National Strength and Conditioning Association. In 2005, he began training in Jiu Jitsu and Muay Thai Kickboxing and took his first amateur MMA fight after only three months of learning the sport. In 2007, Dave went Professional as a Mixed Martial Arts fighter accumulating a 3-2 record. Throughout training for professional fights, Dave was introduced to the CrossFit methodology in 2008 and continues to train for both to this day. He has been a personal trainer for 20 years and has owned his personal training business for 11 years and then became a CrossFit Coach and Affiliate Owner in 2009. CrossFit and MMA have become a way of life for Dave since he has embraced the complete lifestyle of training, nutrition, and mental focus.                                                                                                             Certifications:                                                                              Bachelor of Science in Kinesiology with an emphasis in Exercise Physiology, 2002         N.S.C.A Certified Strength and Conditioning Specialist, 2002                  CrossFit Level 1 Certified Coach, 2010                                                 CrossFit Level 2 Certified Coach, 2014                                               CrossFit Mobility and Movement Certified Coach, 2010                      CrossFit Olympic Lifting Certified Coach, 2011                                    CrossFit Endurance Certified Coach, 2011                                             USAW Level 1 Sport Performance Coach, 2013Contact Dave at

Michael Foster

Michael is a CrossFit Level 2 Coach and Affiliate Owner of CrossFit Insanity, a United States Marine Veteran, and a noted singer/songwriter. He was born and raised in Orange County, CA and loves his beach roots. Michael lettered in Cross Country at Mater Dei High School, and he continued his love of both physical endurance and mental toughness during his military years in the United States Marine Corps as an EAF Aircraft Recovery Specialist. He received his first Fitness Certification through the International Sports Sciences Association in 2007. Michael found CrossFit in early 2010…and fell in love. He trained, studied and persevered to receive his first CrossFit Coaching Certificate in July 2011. He has continued his achievements through CrossFit’s Level 2 Certificate and USA Weightlifting’s Level 1 Sports Performance Coach and USAW Master Athlete/Club Coach Certificate. Michael truly believes that everyone has incredible physical strength and a tremendous mental ability to overcome any hurdle or obstacle in one’s path. He believes that everyone already has this potential, and it is just waiting to be unlocked. He loves competing in CrossFit competitions and Olympic Lifting meets, but more than that, he loves life, succeeding, and, most of all, conquering and destroying any doubt or society’s pre-programmed “can’t do, can’t win” attitude or habit. Michael would like to share his gift of change and positive attitude with you.“To every man there comes that special moment when he is tapped on the shoulder to do a very special thing unique to him. What a tragedy if that moment finds him unprepared for the work that could be his finest hour.” – Winston Churchill.Certifications:                                                   CrossFit Level 2 Certified Coach, 2014                                                CrossFit Level 1 Certified Coach, 2011                                                     USA Weightlifting Master Athlete/Club Coach Certificate, 2014              USA Weightlifting Level 1 Sport Performance Coach, 2013                     ISSA Certified Personal Trainer, 2007                                                       ISSA Certified Sports Nutrition, 2008Contact Michael at

Mara Jalbert

As a young child, Mara trained and competed in the sport of gymnastics. She began at 3 years old training at SCATS Gymnastics in Huntington Beach, CA where she excelled and was placed in an advanced group for her age. She was recruited to Houston, TX at 7 years old to train at Karolyi’s Gymnastics with the current Olympic coach, Marta Karolyi and her husband, Bela Karolyi as an Olympic hopeful training with Kim Zmeskal, Dominique Moceanu, and Hilary Grivich. At 11 years old, injuries stopped her from competing in gymnastics but would not stop her from pursuing other competitive sports. Mara immediately found the sport of diving and cheerleading where she competed for three years before dropping the competitive diving to give focus to her high school studies. During college, Mara became a gymnastics coach for elite gymnasts for a duration of four years. Mara Jalbert graduated from Concordia University of Irvine with a degree in Liberal Studies with an emphasis on Education in 2007. After college, she went on to become a Level 1 Coach at CrossFit Insanity in 2010.Certifications: CrossFit Level 1 Certified Coach, 2010 USAW Level 1 Sport Performance Coach, 2013 Contact Mara at

Kohlby Rockenmacher

Kohlby grew up in San Diego, California. She graduated from California State University Fullerton with her B.A. in Liberal Studies, and continued her education to obtain her Multiple Subject Teaching Credential. When Kohlby is not in the box working out or coaching our members, she is teaching in her fourth grade classroom. Riding horses from age 9, Kohlby had never participated in any fitness-oriented sports. She had an unexpected start in CrossFit. When independent exercise had failed her many times, a friend introduced her to the sport of CrossFit at a local competition, and the fire ignited. The passion grew within the first 6 months at CrossFit Insanity. She found her strength in weightlifting and although a beginner, she found a way of getting healthier and more fit, all while having fun and being supported by the community within the box.A member since 2012, Kohlby has continued her journey in pursuing the best version of herself. She has competed locally in CrossFit and Olympic Weightlifting competitions, as well as obtaining her CrossFit Level One Certification.Health and fitness have become a priority and passion in Kohlby’s life, and with the motto, progression not perfection, she continues to drive her passion by learning as much as possible about fitness and nutrition.Certifications:CrossFit Level 1 Certified Coach, 2015

Gregg Rebert

Gregg has been a sports enthusiast since he was a young child. He participated in baseball, soccer and wrestling starting at the age of 5 and continued throughout high school and college. Once college was finished, he was looking for a way to stay active and keep moving but hated going to the gym and doing treadmill or elliptical work. In December of 2012, his sister invited him to do a workout at her CrossFit box in PA and he almost died! The variation of movements and the intensity of the workout was much closer to that of a day in the wrestling room compared to a day at 24 Hour Fitness. He was hooked instantly. When he got back to California from vacation, he started looking for boxes and found CrossFit Insanity close to his work. He tried out their coaching and workout program and instantly fell in love. CrossFit Insanity peaked his interest in fitness so much that he has received his Level 1 Trainers Certification in January 2013. Gregg has a growing passion for Olympic lifting, competing in his first competition in April of 2013, as well as multiple other fitness competitions with the CrossFit Insanity team. Gregg now wants to take his love of the movements and help coach and guide people to their full potential and strength. He is a very positive person and loves to motivate others to push a little harder and achieve goals they never thought possible.
CrossFit Level 1 Certified Coach, 2013
CrossFit Olympic Lifting Certified Coach, 2013

Samantha Gallo

Samantha is a wellness-inspiring, globe-trotting yogini who found yoga in 2001. Ever since, she has educated and inspired herself and others about the joys of yoga, now teaching at universities, studios, corporations, sports teams and gyms of north and central Orange County. Samantha also leads teacher trainings, workshops and retreats, and serves as professor at California State University, Fullerton. Once an avid runner, she considers herself a born-again fitness enthusiast. In 2009, she completed her Master’s degree in Kinesiology in which she incorporates her understanding of human movement and physiology into her style. Her vinyasa flow is powerful, playful, thoughtful and always challenging, but she continues to encourage her students to practice with a smile.
Bachelor of Arts in Business Marketing from California State University, Fullerton 2004
Master of Science in Kinesiology from California State University, Fullerton 2009
N.S.C.A Certified Strength and Conditioning Specialist, 2013
E-RYT 500 [Experienced Registered Yoga Teacher] with Yoga Alliance since 2006

Michelle Miller

Michelle has a background in dance and has always been a fitness enthusiast. Throughout college, she danced competitively and taught spin classes at 24 Hour Fitness. In 2011, she started CrossFit to get in shape for her wedding and fell in love instantly—it was the first time working out became about personal progression, health and community rather than just a number on the scale. When she started she couldn’t do a pull-up and couldn’t imagine lifting more than 20 pounds. Since then, Michelle has gone on to compete in several local competitions and can back squat twice her body weight.
CrossFit Level 1 Certified Coach, 2012

Lauren Maloney

Lauren found her passion for CrossFit rather unexpectedly. Being a ballet dancer by nature from the ages of 3 – 17 and running cross country in high school purely to stay fit for dance, Lauren considered herself an athlete of the arts. While living overseas in England, Lauren was fortunate enough to study ballet at the Royal Academy of Dance in London until her study was cut short when her family moved back to the Unites States in 1997. From then on, she consistently explored alternate avenues to try and replace her love of ballet. CrossFit was the only thing that seemed to stick.
Lauren first met Coach Dave 7 years ago when she was looking for a personal trainer. Through Dave’s training, in just 6 short months she realized she had found something that finally excited her. Then life happened and she stopped her training to pursue other avenues, but never forgot that experience. It wasn’t until 2009 that she found herself back in contact with Coach Dave and now his wife Mara, who began training as well. From then the rest is history. Through Dave and Mara’s teaching and coaching Lauren succeeded in achieving her Level 1 CrossFit Certification in February 2012. What Lauren loves most about training and coaching CrossFit is that people are capable of so much more than they even know is possible and she loves helping new people realize their own potential. She especially loves how empowering it is for women. Lauren graduated from Arizona State University in 2010, with a BA in Political Science and an emphasis on International Studies.
CrossFit Level 1 Certified Coach, 2012

Crossfit Insanity

17875 Skypark Circle Suite AB,

Irvine, CA 92614

Phone. 949-660-8801