Petra Kamstra| Country (sports) | Netherlands |
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| Residence | Rotterdam, Netherlands |
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| Born | (1974-03-18) 18 March 1974
Rotterdam, Netherlands |
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| Turned pro | 1989 |
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| Retired | 1998 |
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| Prize money | $184,407 |
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|
| Career record | 144–94 |
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| Career titles | 2 ITF |
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| Highest ranking | No. 70 (2 October 1995) |
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|
| Australian Open | 3R (1991) |
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| French Open | 2R (1996) |
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| Wimbledon | 4R (1995) |
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| US Open | 1R (1993, 1995) |
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|
| Career record | 29–27 |
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| Career titles | 1 WTA, 2 ITF |
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| Highest ranking | No. 97 (6 November 1995) |
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Petra Kamstra (born 18 March 1974) is a former professional tennis player from the Netherlands who won one WTA Tour-title in doubles during her career. She reached her individual career-high singles ranking on 2 October 1995, when Kamstra became the No. 70 of the world. Twice she was named the Rotterdam Sportswoman of the Year (1990 and 1992).
WTA Tour finals
Doubles: 1 (title)
| Legend |
| Tier I |
| Tier II |
| Tier III |
| Tier IV & V |
ITF finals
| $25,000 tournaments |
| $10,000 tournaments |
Singles (2–4)
| Result |
No. |
Date |
Tournament |
Surface |
Opponent |
Score |
| Win |
1. |
17 July 1989 |
Koksijde, Belgium |
Clay |
Heleen van den Berg |
7–5, 7–5 |
| Loss |
2. |
15 October 1990 |
Madeira, Portugal |
Hard |
Sabine Gerke |
1–6, 1–6 |
| Win |
3. |
22 October 1990 |
Benin City, Nigeria |
Hard |
Sarah Bentley |
6–0, 7–5 |
| Loss |
4. |
24 May 1993 |
Brindisi, Italy |
Clay |
Irina Spîrlea |
1–6, 7–5, 3–6 |
| Loss |
5. |
7 June 1993 |
Le Havre, France |
Clay |
Ludmila Richterová |
7–6, 3–6, 4–6 |
| Loss |
6. |
14 August 1995 |
Carthage, Tunisia |
Clay |
María Fernanda Landa |
2–3 ret. |
Doubles (2–2)
| Result |
No. |
Date |
Tournament |
Surface |
Partner |
Opponent |
Score |
| Loss |
1. |
15 October 1990 |
Madeira, Portugal |
Hard |
Monica Mraz |
Cora Linneman Stephanie Mayorkis |
4–6, 5–7 |
| Win |
2. |
25 May 1992 |
Ashkelon, Israel |
Hard |
Ilana Berger |
Michelle Anderson Limor Zaltz |
6–2, 2–6, 6–4 |
| Win |
3. |
24 May 1993 |
Brindisi, Italy |
Clay |
Lara Bitter |
Angela Kerek Irina Spîrlea |
7–5, 4–6, 6–2 |
| Loss |
4. |
12 July 1993 |
Vigo, Spain |
Hard |
Linda Niemantsverdriet |
María Fernanda Landa Sofia Prazeres |
6–7, 6–3, 6–7 |