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.

Competition record

{{AchievementTable\|Event=yes}}
colspan="6"\|Representing {{RSA}}
rowspan=6\|1994 \|rowspan=3\|African Junior Championships \|rowspan=3\|Algiers, Algeria \|bgcolor=silver\|2nd \|100 m \|11.69
bgcolor=gold\|1st \|200 m \|23.59
bgcolor=silver\|2nd \|4 × 100 m relay \|46.15
rowspan=3\|World Junior Championships \|rowspan=3\|Lisbon, Portugal \|10th (sf) \|100m \|11.62 (wind: +0.8 m/s)
bgcolor=gold\|1st \|200m \|22.80 w (wind: +2.2 m/s)
2nd (h)Disqualified in the final. \|4 × 100 m relay \|45.63
1995 \|World Championships \|Gothenburg, Sweden \| – \|200 m \|DQ
rowspan=2\|1998 \|African Championships \|Dakar, Senegal \|bgcolor=cc9966\|3rd \|200 m \|22.89
Commonwealth Games \|Kuala Lumpur, Malaysia \|5th \|200 m \|23.07
rowspan=4\|1999 \|rowspan=2\|World Championships \|rowspan=2\|Edmonton, Canada \|38th (h) \|200 m \|23.59
11th (h) \|4 × 100 m relay \|44.35
rowspan=2\|All-Africa Games \|rowspan=2\|Johannesburg, South Africa \|5th (h) \|200 m \|23.31Did not start in the semifinals
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
rowspan=2\|2002 \|Commonwealth Games \|Manchester, United Kingdom \|5th \|400 m \|52.87
African Championships \|Radès, Tunisia \|6th (h) \|400 m \|53.81Did not start in the final.
rowspan=3\|2003 \|World Championships \|Paris, France \|20th (sf) \|400 m \|51.89
rowspan=2\|All-Africa Games \|rowspan=2\|Abuja, Nigeria \|6th \|400 m \|52.45
bgcolor=silver\|2nd \|4 × 100 m relay \|44.44
rowspan=4\|2004 \|rowspan=3\|African Championships \|rowspan=3\|Brazzaville, Republic of the Congo \|5th \|400 m \|51.67
bgcolor=silver\|2nd \|4 × 100 m relay \|44.42
bgcolor=silver\|2nd \|4 × 400 m relay \|3:30.12
Olympic Games \|Athens, Greece \|37th (h) \|200 m \|23.66
rowspan=2\|2006 \|rowspan=2\|African Championships \|rowspan=2\|Bambous, Mauritius \|4th \|400 m \|53.26
bgcolor=gold\|1st \|4 × 400 m relay \|3:36.88

colspan="6"|Representing {{RSA}}

rowspan=6|1994

|rowspan=3|African Junior Championships

|rowspan=3|Algiers, Algeria

|bgcolor=silver|2nd

|100 m

|11.69

bgcolor=gold|1st

|200 m

|23.59

bgcolor=silver|2nd

|4 × 100 m relay