Original sentence: Wostenholme best results were on clay; a semi-finals appearance at the Guaruja, Brazil Grand Prix event in 1988 and 1991; a quarter-finals showing in the Stuttgart Outdoor Grand Prix event in 1989; and a semi-finalist in the Rio de Janeiro Grand Prix event in 1990
Edited sentence: Wostenholme, who resided in Oakville, had his best results on clay; a semi-finals appearance at the Guaruja, Brazil Grand Prix event in 1988 and 1991; a quarter-finals showing in the Stuttgart Outdoor Grand Prix event in 1989; and a semi-finalist in the Rio de Janeiro Grand Prix event in 1990