 Complete the following phrase:  Shimizu rode two junior world records in the 500 metres and sprint combination in 1997. She won at the 2001 Asian Speed Skating Championships the silver medal in the 500 metres event and the bronze medal in the 1000 metres event. She participated three times at the World Sprint Speed Skating Championships for Women: in 1997 finishing 16th overall, 1999 finishing 23rd and in 2003 finishing 19th. She participated at the European Speed Skating Championships for Women in 1981. At the 