Heide Seyerling

Heide Seyerling (born 19 August 1976) is a former South African athlete, born in Port Elizabeth, specializing in the 200 and 400 metres. She twice competed at the Olympic Games, in 2000 and 2004. At the 2000 Games she reached the 400 metres final finishing 6th with a new (and still standing now) national record of 50.05. She is married to former sprinter Mathew Quinn.

Personal bests

 * 100 m – 11.35 (-0.3) (Durban 1999)
 * 200 m – 22.63 (+1.8) (Durban 2001)
 * 400 m – 50.05 (Sydney 2000)