In 1990, Olga met her future dance partner and husband, Ralf Müller, at the German Open Championships in Mannheim. After a trial, Olga decided to stay in Germany and dance with Ralf. On October 2, 1990, they started their career together and danced quickly to the top of the world. For a long time, they dominated the international arena in International Style Latin. On Valentine's Day in 1991, they got married. In the same year, Ralf and Olga took 3rd place at the Deutsche Meisterschaft S-Latein Championship after only 5 months of partnership. The dance couple was known in the 1990s as the figurehead of German DanceSport.
After a successful career in the Amateur Division, they later moved to the Professional division and won the WDDSC World Professional South American Showdance Championship three years in a row, from 1998 to 2000. On November 18, 2000, they announced the end of their competitive dancing career at the World Dance Gala in Baden-Baden in order to be able to concentrate on their profession as dance instructors and their family in the future. In 1992 Olga accepted German citizenship.
Olga Müller-Omeltchenko and Ralf Müller have two sons, born in 2007 and 2015.Franco Formica. Many were surprised when Franco and Olga announced the formation of the duo. They then announced their appearance at the Blackpool Dance Festival, but changed their minds soon afterwards. However, they did present various exclusive demonstrations and show performances. Tanzschule Müller" in Rastatt, Germany where they instruct national and international champions. In 2006, she was voted Best Dance Coach of the Year in Blackpool, England.
Today, Olga & Ralf instruct with Trainer A licenses. Olga is an official trainer of the Deutscher Tanzsportverband e.V., (DTV), Germany's WDSF Member Body, as well a national coach of the Tanzsportverband Baden-Württemberg e.V., together with husband Ralf.
- 3-time WDDSC World Professional South American Showdance Champion (1998 - 2000)
- 1998 - Bonn, Germany
- 1999 - Miami, FL (USA)
- 2000 - Paderborn, Germany
- 2-time German Open Professional South American Showdance Champion (1999 - 2000): Mannheim, Germany
- British Open Professional Rising Star Latin Champion (1997): Blackpool, England
- 3-time German Open Amateur Latin Champion (1994 - 1996): Mannheim, Germany
- IDSF World Amateur Latin Champion (1996): Kassel, Germany
- ARD Masters Gala Amateur Latin Champion (1996): München, Germany
- British Open Amateur Latin Champion (1996): Blackpool, England
- IDSF European Amateur Latin Champion (1996): Copenhagen, Denmark
- UK Open Amateur Latin Champion (1996): Bournemouth, England
- IDSF International Open Latin Champion - Goldstadtpokal (1996): Pforzheim, Germany
German Championship Kür-Latein (1998) German Championship Latin (1998, 1999) World Cup (1996) European Championship (1994, 1996) German Championship (1994-1997) German Open Championships (1994-1996) ARD Masters Gala (1994-1996) Goldstadt Cup (1994-1996) Association membership 1994 to 1996 at Black and White Club Pforzheim