Maria Dimitriadi has started Aikido in 2006 with Janet Clift and Eamonn Devlin at the Aikido of Athens dojo. She has attended numerous seminars with teachers such as Y. Fujimoto, T. Miyamoto, T. Kuribayashi, S. Endo, Didier Boyet, Christian Tissier, S. Sugawara, Y. Kobayashi, T. Mori, Donovan Waite, John Stevens, Chris Mooney, Gordon Jones, John Rogers, Robert Savoca, Emilio Cardia, Juba Nour and Michael Ibers. She holds the 3rd Dan in Aikido and the title of Fukushidoin (Federation Assistant Instructor) of the Aikikai of Greece Federation. She is the Sensei at Aikido of Marousi and has taught at many seminars around Greece (e.g. Syros, Kalamata, Nafplio).
She also practices Iaido in which she has taken part in many seminars and competitions and in which she holds the rank of 3rd Dan. Since 2010 she is responsible for the Iaido group at Aikido of Athens. At the same time, she practices Toda-ha Buko-ryu (THBR) naginata jutsu with Ellis Amdur (Shihan of THBR) in which she is Shihan Dai and holds the rank of Chuden.