Lena Miladinovic is a three-time national champion of her country. She has represented Serbia in numerous European and world championships. At just 12 years old, she defeated the world champion Anna Ushenina. Her successes continued in her later years; she became a university world and European champion.

She began her work with coaches at the age of 7, so chess principles are deeply ingrained in her. She passes all of this on to children and adult chess players who want to improve their game, with the message that it is most important to cultivate a love for chess from the beginning.