Diana Trčak Regović graduated from the Faculty of Kinesiology at the University of Zagreb in 1992 earning a Master’s degree in kinesiology (physical education teacher), with the competence to work in educational institutions of all levels as well as to perform kinesitherapy.
Since 1992 she has been working as a physical education teacher, first at the School of Fashion and Design in Zagreb (from 1992 to 2002), then at the 9th Gymnasium in Zagreb (from 2002 to 2007) and since 2007 at the Vocational Secondary School in Samobor.
She played handball in the Women's Handball Club "Samobor” from 1978 to 1991.
She participated in numerous seminars for sports recreational trainers both in the Republic of Croatia and abroad.
Since 1982, she has been a trainer of sports recreation in the Society for Sport Recreation "Sport for All" Samobor. She is the current vice-president and a longtime member of the Presidency of Society for Sport Recreation "Sport for All" Samobor.