John & Cathi began dancing at the age of 4. John studying Tap, Jazz, Acting, and Ballroom. Cathi studying Ballet, Point, Jazz, Tap, Tumbling, Acting, and Ballroom. They were Junior American Style Champions, United States Amateur Champions and United States Professional 10 Dance Champions. John & Cathi were chosen to represent the U.S. at World Amateur Championships and were part of a formation team sent to Poland as ambassadors. As Professional Champions they represented the U.S. in Japan, Germany, England, Holland and Canada. They were one of the founding teams of the American Ballroom Theatre. John & Cathi have performed on stage at the: "Joyce Theatre", "Gershwin Gala", "A Grand Night", "Brooklyn Academy of Music", "Kennedy Canter", "Herbst Theatre", "Lincoln Center", Jacob's Pillow Ted Shawn Theatre", DTW's Bessie Schonberg Theatre", "Celebrate Brooklyn Theatre", "Papermill Playhouse", "Sadler's Wells Theatre/England", "Maison de la Dance/France", "Akademie der Kunste/Germany", "National Arts Center/Canada". John & Cathi now own and operate "Nyemchek’s Ballroom & Performing Arts Centre" in Pearl River, NY. The Ballroom department is now celebrating it's 16th year in business and the Performing Arts department its 12th year in business. They have four children, a daughter Jamie Nicole, twin sons John Joseph and Joshua Daniel and their youngest son Joseph Dante. John & Cathi travel throughout the country as World Class Adjudicators. They both hold teaching degrees with Dance Educators of America, North American Dance Teachers Association, and Imperial Society of Teachers of Dancing. They are also registered with the National Dance Council of America, International DanceSport Federation, and the World Dance and DanceSport Council. John is a fellow and examiner for the NADTA and a certified Wheel Chair Dancing Instructor. Cathi is a chairman of judges, registrar and a certified scrutineer with the NDCA. John & Cathi are members of the Fred Astaire Studios International Dance Board. John is the co-author of the "Hustle" Technique Book and has produced the Bronze Hustle videotape. John also produced the DanceSport Champions Series, its first event was held in Madison Square Garden: NYC and its second event has held in James L. Knight Arena: both events were televised by ESPN. John and Cathi produce Nyemchek's Dance Centre's annual Dance Recital. They also are co-organizers of "The Yankee Classic and New England DanceSport Championships" which are held in Cambridge, Massachusetts every June.