Use the text to tell me what competitions Irina Aksyonova won or placed highly in.

Context: Irina Anatolyevna Aksyonova is a retired Russian swimmer. She won bronze medals in the 4 × 100 m medley relay at the 1978 World Aquatics Championships and 1980 Summer Olympics, where she swam for the Soviet Union team in the preliminaries. At the 1980 Olympics she also finished fourth in the 800 m, fifth in the 400 m and eighth in the 200 m freestyle events.

Between 1977 and 1980 she won seven national titles and set five national records in 200–800 m freestyle events. However, when her medley relay team finished third at the 1978 World Championships, she was swimming the 100 m butterfly leg. Currently she lives in Czech Republic.

Answer: 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.