 Complete the following phrase:  She competed for the USSR in the 1988 Summer Olympics held in Seoul, South Korea in the 400 metre hurdles, where she won the silver medal. She followed this up with a leg in the 4 x 400 metres relay where she won the gold medal with her teammates individual gold medalist Olga Bryzgina, individual bronze medalist Olga Nazarova and Mariya Pinigina, setting a new world record of 3:15.17 minutes which is still unbeaten . Ledovskaya is also the 