Coach Bela Karolyi has an estimated net worth of $5 million. Together with his wife Marta, Bela Karolyi has coached 15 world champions, 9 olympic champions, 6 U.S. National Champions and 16 European medalists. Among the famous gymnasts which the couple have coached include Mary Lou Retton, Nadia Comaneci, Betty Okino, Teodora Ungureanu, Kristie Phillips, Dominique Moceanu, Kim Zmeskal and Kerri Strug.
Bela Karolyi was a National Junior Boxing team and part of the Hammer Throwing Team in Romania. After enrolling himself at the Romania College of Physical Education, he studied gymnastics. From then on, he began coaching and training women gymnasts. According to her protegees, Karolyi was a very intimating coach to the point that they have developed poor self-esteem and eating disorders. Furthermore, some protegees of Karolyi claimed that their coach was psychologically and verbally abusive to them.