Use the text to tell me what competitions Irina Aksyonova won or placed highly in.
Irina Aksyonova placed highly or won medals in many competitions, including the 1978 World Aquatics Championships, where she won a bronze medal, and the 1980 Summer Olympics where she won a bronze medal and also placed highly in the 800 meter, 400 meter, and 200 meter freestyle event. She also won third place in the 1978 World Championships. She also won seven national titles.