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 .
Year
Competition
Venue
Position
Event
Notes
Representing South Africa
1994
African Junior Championships
Algiers, Algeria
2nd
100 m
11.69
1st
200 m
23.59
2nd
4 × 100 m relay
46.15
World Junior Championships
Lisbon , Portugal
10th (sf)
100m
11.62 (wind: +0.8 m/s)
1st
200m
22.80 w (wind: +2.2 m/s)
2nd (h)[ 1]
4 × 100 m relay
45.63
1995
World Championships
Gothenburg, Sweden
–
200 m
DQ
1998
African Championships
Dakar, Senegal
3rd
200 m
22.89
Commonwealth Games
Kuala Lumpur, Malaysia
5th
200 m
23.07
1999
World Championships
Edmonton, Canada
38th (h)
200 m
23.59
11th (h)
4 × 100 m relay
44.35
All-Africa Games
Johannesburg, South Africa
5th (h)
200 m
23.31 [ 2]
7th
400 m
52.27
2000
Olympic Games
Sydney, Australia
6th
400 m
50.05 (NR )
2001
World Championships
Edmonton, Canada
9th (sf)
400 m
50.87
2002
Commonwealth Games
Manchester, United Kingdom
5th
400 m
52.87
African Championships
Radès, Tunisia
6th (h)
400 m
53.81 [ 3]
2003
World Championships
Paris, France
20th (sf)
400 m
51.89
All-Africa Games
Abuja, Nigeria
6th
400 m
52.45
2nd
4 × 100 m relay
44.44
2004
African Championships
Brazzaville, Republic of the Congo
5th
400 m
51.67
2nd
4 × 100 m relay
44.42
2nd
4 × 400 m relay
3:30.12
Olympic Games
Athens, Greece
37th (h)
200 m
23.66
2006
African Championships
Bambous, Mauritius
4th
400 m
53.26
1st
4 × 400 m relay
3:36.88
100 m – 11.35 (-0.3) (Durban 1999)
200 m – 22.63 (+1.8) (Durban 2001)
400 m – 50.05 (Sydney 2000)
^ Disqualified in the final.
^ Did not start in the semifinals
^ Did not start in the final.