| Country (sports) |  Netherlands |
|---|---|
| Residence | Rotterdam, Netherlands |
| Born | (1974-03-18)18 March 1974 (age 51) Rotterdam, Netherlands |
| Turned pro | 1989 |
| Retired | 1998 |
| Prize money | $184,407 |
| Singles | |
| Career record | 144–94 |
| Career titles | 2 ITF |
| Highest ranking | No. 70 (2 October 1995) |
| Grand Slam singles results | |
| Australian Open | 3R (1991) |
| French Open | 2R (1996) |
| Wimbledon | 4R (1995) |
| US Open | 1R (1993, 1995) |
| Doubles | |
| Career record | 29–27 |
| Career titles | 1 WTA, 2 ITF |
| Highest ranking | No. 97 (6 November 1995) |
Petra Kamstra (born 18 March 1974) is a former professionaltennis player from the Netherlands who won oneWTA 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).
| Legend |
|---|
| Tier I |
| Tier II |
| Tier III |
| Tier IV & V |
| Outcome | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Winner | 8 October 1995 | Surabaya, Indonesia | Hard |  Tina Križan |  Nana Miyagi Stephanie Reece | 2–6, 6–4, 6–1 |
| $25,000 tournaments |
| $10,000 tournaments |
| 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. |
| 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 AndersonLimor Zaltz | 6–2, 2–6, 6–4 |
| Win | 3. | 24 May 1993 | Brindisi, Italy | Clay | Lara Bitter | Angela KerekIrina 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 |
| Awards | ||
|---|---|---|
| Preceded by | Rotterdam Sportswoman of the Year 1990 | Succeeded by |
| Preceded by | Rotterdam Sportswoman of the Year 1992 | Succeeded by |
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