Career
He reached four World Championship finals, finishing a career best fourth in 1985 at the Odsal Stadium in Bradford, England. Neimi rode for the White City Rebels in the British League from 1976-1978, winning the league championship with the team in 1977. He continued riding in Britain until 1986 for other teams including: Eastbourne Eagles (1979-1980), Birmingham Brummies (1981), Wimbledon Dons (1982-1983), Ipswich Witches (1984-1985) and the Swindon Robins (1986)
He also represented Finland in the World Team Cup, though the Fins never progressed past the Semi-final stage during his career.
Individual World Championship
1980 - Göteborg, Ullevi - 8th - 8pts
1982 - Los Angeles, Memorial Coliseum - 12th - 5pts
1984 - Göteborg, Ullevi - 13th - 4pts
1985 - Bradford, Odsal Stadium - 4th - 10pts
World Pairs Championship
1977 - Manchester, Hyde Road (with Ila Teromaa) - 6th - 14pts (7)
1979 - Vojens, Vojens Speedway Center (with Ila Teromaa) - 7th - 7pts (7)
1980 - Krsko, Matija Gubec Stadium (with Ila Teromaa) - 6th - 14pts (6)
1982 - Sydney, Liverpool City Raceway (with Ari Koponen) - 5th - 16pts (12)
1989 - Leszno, Alfred Smoczyk Stadium (with Olli Tyrvainen) - 5th - 31pts (18).
