Shimizu won the silver medal in individual jumping at the 1986 Winter Asian Games. At the Nordic World Ski Championships in Lahti in 1989 , he jumped from the large hill to 84 and 74 meters and reached 54th place. He did not start on the normal hill. Together with his teammates Akira Higashi and Noriaki Kasai , he finished the team competition as 15th and last.
On December 16, 1989, he made his debut in the ski jumping World Cup in Sapporo . However, he stayed in his first World Cup, as well as on the following day, with no chance of World Cup points. However, he missed the points in the second competition by just two places. A year later he started again in the World Cup in the same position, but jumped after the top of the world again in 58th place.