
Performance Training Systems Chicago
Performance Training Systems (PTS) is an elite sports training facility for clients looking to make real results. We are a results based company that maintains the highest standard in sport specific strength and conditioning, personal training, nutrition consultation, soft tissue management therapies and rehabilitation. PTS was designed with the high level athlete in mind and as such contains the highest quality equipment available. We are located in the West Loop neighborhood of Chicago, just a mile west of the ‘Loop.’
Phone: (312) 666-7147
Visitors and clients have access to free parking in the parking lot located just south of our facility. Please park in the spots located in the parking lot closest to Ashland and Kinzie.
Services
Testimonials
Team
Bobby DeThomasis
MS, ATC, CSCS, SCCC, A.R.T., FRC, FRR, PICP Level 5 Master Strength Coach, Biosignature Modulation, FST Level 2, Metabolic Analytics, Eleiko Strength Coach Level 2
Bobby DeThomasis has been working as a Strength and Conditioning Coach and Athletic Trainer since 2004. He graduated with a Bachelor of Science in Athletic Training and a concentration in Strength and Conditioning from the State University of New York College at Cortland, where he played varsity football for four years and was a two time team captain. After college, Bobby passed the certification tests for Athletic Training (ATC) and the NSCA Strength and Conditioning Specialist (CSCS). He began working as a full time Strength and Conditioning Coach at Xceleration Sports Training located in New York. He also worked part-time as the Head Athletic Trainer for the Strong Island Sound professional basketball team, part of the American Basketball Association.
While working as the Head Strength and Conditioning Coach at Xceleration Sports Training, Bobby became interested in the training and nutritional protocols of world renowned strength coach Charles Poliquin. After several years of practicing the Poliquin Principles, Bobby became certified as a Level 1 Biosignature Practitioner in 2007 and moved to Chicago to work at The Poliquin Performance Center in Northfield, Illinois.
Bobby has been continuously improving his skills set as an Athletic Trainer and Strength Coach by regularly attending certification classes as well as earning his Masters Degree in Sport Science from East Tennessee State University. He has achieved Level 5 PICP Master Strength Coach and earned his Level 2 Biosignature Modulation. He has also taken instructional courses with Charles Poliquin on special consideration topics, which include, Accelerated Healing of Low Back Injuries, Sport Specific Training, and Training for the Pre-Pubescent. His specialties include improving sport specific strength and conditioning, speed, power and quickness development, athletic rehabilitation, and sports nutrition.
Bobby has worked with numerous elite athletes including NFL and collegiate football players, MLB, minor league, and collegiate baseball players, NHL, AHL and collegiate hockey players as well as collegiate lacrosse players. Bobby has also had the opportunity to coach several Olympic athletes, who competed in wrestling and long track speed skating. This included a silver medalist in the 2010 winter games in Vancouver.
Jessie DeThomasis
BS, CSCS, NSCA-CPT, PICP Strength Coach Level 2, Biosignature Modulation, FST Level 2, USA Track & Field Coach Level 2 Sprints, FRC, AFPA Certified Nutrition Counselor, Metabolic Analytics, Eleiko Strength Coach Level 2, USAW Level 2
Jessie DeThomasis graduated from the State University of New York College (SUNY) at Cortland with a BS in Economics in 2007. After working in finance for four years, she decided to pursue her passion for sports performance and strength and conditioning. She became a Certified Strength and Conditioning Coach (CSCS) as well as a Certified Personal Trainer (CPT) through the NSCA. She and her husband, Bobby DeThomasis, started PTS in the fall of 2011, and then opened their own facility in January 2013.
Jessie specializes in structural balance, strength and power development, Olympic weightlifting, sports nutrition, sprint biomechanics, sprint program design, and body composition improvement. She works with a variety of athletes, including track and field, hockey, football, soccer, volleyball, tennis, and figure skating to improve their strength, speed, and power output. She is passionate about continuing her education in strength and conditioning, coaching, nutrition, mobility, and integrative health.
Jessie is a Level 2 USA Track and Field Coach specializing in sprints, hurdles, and relays. Jessie’s own racing experience in distances ranging from 100m to half marathons, helps her design personalized training regimens for a wide range of both sprint and endurance athletes. At SUNY Cortland, she was a member of the Indoor and Outdoor Track & Field team. and competed in the 400, 4×4, and high jump. She has continued competing and is currently training for the 200m and 400m as a Masters track and field athlete. In 2019 she placed 1st in the 400m for her age group at the USATF Masters Outdoor National Championships.
Jake Faber
BS, CSCS, PICP Strength Coach Level 2, Metabolic Analytics
Jake Faber joined the PTS team as a strength and conditioning coach in the summer of 2015. He received his BS in Exercise Science from Western Illinois University and upon graduating immediately obtained his NSCA-CSCS. He developed a strong passion for strength and conditioning throughout his time as a basketball player. At PTS, he specializes in athletic development and body composition improvement.
Tony Morales
MS, CSCS, USAW Level 2, PICP Strength Coach Level 2, TSAC-F
Tony Morales joined the PTS team as a strength coach in the beginning of 2020. He discovered his passion for fitness during his career in the military, where he learned the importance of physical preparation. After honorably serving for six years, he decided to pursue a career in strength and conditioning. In 2021, he graduated from DePaul University with a BS in Exercise Science. In 2023, Tony began the master’s program at Concordia University in Sports Performance Training.
Tony works with a variety of athletes, both in-season and off-season, to help develop strength and power through various training modalities. He not only focuses on increasing athletic performance but also reducing the risk of injury. In addition, he successfully works with clients to improve body composition and strength. He enjoys using his skills to help others surpass their fitness goals in a safe training environment.
Tony is also the head coach of PTS Weightlifting; the team focuses on creating a positive training environment where athletes of all levels can train together and continue to improve in the sport of Olympic weightlifting. Tony helps weightlifters improve technique, strength, and power in preparation for weightlifting competitions. Tony encourages and welcomes beginners to 1-on-1 training to help build a strong foundation for weightlifting.
Tony plans on furthering his education and improving his coaching abilities every chance he gets. He enjoys attending training related seminars and educational courses. In addition, he enjoys hiking and spending time outdoors.
Collin van Eijk
MS, CSCS, PICP Strength Coach Level 1, USAW Level 1
Collin van Eijk joined the team in July 2021 after completing a summer internship with PTS. He graduated from LSU in the Spring of 2019 with a BS in Exercise Science and then continued his education by earning his MS in Exercise Science in the Spring of 2021 at Loyola University in Chicago.
In his spare time, Collin enjoys training and competing in powerlifting. He currently holds 9 California state records. Through the sport of powerlifting, Collin was able to witness first-hand how exercise can motivate and empower someone.
Collin specializes in athletic development, powerlifting, body composition improvement, and general wellness.
Daniel Mallin
MS, CSCS
Daniel Mallin joined the PTS team following his internship during the Summer of 2022. He graduated from Illinois State University in 2018 with a BS in Physical Education through the School of Kinesiology. After two years of teaching middle school PE he went back to school for his master’s degree in Exercise Physiology at Loyola University Chicago and graduated in 2022.
During his time teaching, Daniel found his passion for coaching athletics through high school lacrosse. He coached lacrosse for two seasons, both as a head and assistant coach. In the off-season he was afforded the opportunity to train softball, track, wrestling, football, soccer, and volleyball athletes during their strength and conditioning sessions. While earning his master’s degree, Daniel worked eighteen months at the Illinois Bone and Joint Physical Therapy Clinic where he developed an expertise for injury prevention and rehabilitation. In addition to his master’s degree, Daniel has also become a Certified Strength and Conditioning Specialist (NSCA-CSCS).
Growing up, Daniel played football, lacrosse, soccer, baseball, tennis, and hockey. He initially found his passion for fitness once he realized his teammates were always bigger and stronger than him even though they were engaging in the same daily activities. He found success after realizing how strength training can improve balance, speed, power, agility, and more.
Daniel specializes in agility training, athletic development, and training for muscle growth for those who have a difficult time gaining weight.
Matthew Gonzalez
MS, PICP Strength Coach Level 1, USAW Level 2
Matthew Gonzalez joined PTS in March 2022 after completing his Master’s Degree in Exercise Physiology at Eastern Illinois University. Prior to completing the Master’s program he had earned his BS in Exercise Science from Eastern Illinois University in May 2022 and immediately started an internship at PTS.
Since joining the PTS team Matt has gained interest in the sport of Olympic Weightlifting. Matt has filled the role of assistant coach for the PTS weightlifting team. He continues to learn more about programming and coaching weightlifters, along with supporting athletes during training and at meets.
In his spare time he enjoys training and staying active with sports. He is a lifelong sports fan and grew up playing baseball and basketball. Matthew currently holds his PICP Strength Coach Level 1 certification and specializes in athletic development for youth athletes, body composition improvement, and general wellness.
Maurice Carter
BA
Maurice graduated in 2025 from North Park University with a BA in Business and a minor in Exercise Science. He was a 4-year starter on the football team as their strong safety. In high school, he competed in track & field as a sprinter and played soccer. Maurice is excited to use his knowledge, passion, and experience as a strength coach at PTS! He works with a variety of clients, including athletes of all ages, clients focused on body composition improvement and fitness goals, as well as weekend warriors.
Maurice became a strength coach because he genuinely enjoys helping others learn how to strength train properly and reach their goals. He has always enjoyed being in the gym, ever since he was old enough to work out with his dad.
Maucie is currently studying for his CSCS certification and also plans to take his USA-W Level 1 course later this year.
Cortez Cross
Level 2 FST, Biosignature Modulation, FRR
Cortez Cross discovered his passion for weight training when he was 17 years old. After earning his personal training certification through the National Council of Strength and Fitness (NCSF) he wanted to help other people achieve their fitness goals. As an overweight child, who struggled with health and self-image, he was able to relate to his clients’ needs. Improving body composition and overall health became his ultimate goal. Bodybuilding was his source of motivation. Cortez went on to successfully compete in three natural bodybuilding competitions earning third in the Ironman, second in Mid-State Classic and again second in the Ironman.
His further interest in healthy lifestyle choices led him to complete the Poliquin Biosignature Level 1 certification. After initially being exposed to Fascial Stretch Therapy (FST), he realized the impact it could have on his clients flexibility and reducing chronic pain. Cortez has also attended several Olympic lifting seminars taught by California Strength and Eleiko.
Nina May
Nina May was a lifelong runner, who only knew running as her form of exercise. Wanting better results, she decided to seek out personal training which was something completely foreign to her. Nina found PTS in 2013 and began working out with a trainer and the rest is history! She was so impressed by the results and really appreciated the one-on-one personal training.
At that time Nina was working in retail as a Store Manager and/or Visual Merchandiser. As time went on Nina realized she wasn’t in love with retail and wanted something different. One day while scrolling through Instagram she saw there was an Administrative Assistant position open at PTS and decided to completely change her career path. Nina assists with client billing, general inquiries, and overall facility operations. She enjoys learning the technical side of personal training and plans to learn more about nutrition as well.










