Career
Kasper rode in the United Kingdom for the Hackney Hawks from 1982 until their closure the following season at the end of 1983. His father Antonín Kasper, Senior also appeared in Speedway World Championship finals. In 2005 Toni was diagnosed with cancer, and he died in 2006.
1983 – Norden, Motodrom Halbemond – 14th – 3 points
1986 – Chorzów, Silesian Stadium - 14th - 2 pts
1987 – Amsterdam Olympic Stadium - 12th – 9 pts
1990 – Bradford, Odsal Stadium – 15th – 2 pts.