Introduction
Marlene Weingärtner (born 30 January 1980) is a retired professional tennis player from Germany. She is a former top 40 player in both singles and doubles.
The most remarkable moment of Weingärtner's career was her first round match in the Australian Open 2003 when she defeated the defending champion Jennifer Capriati. Capriati led the encounter 6–2, 4–1, but Weingärtner fought back and won by a 2–6, 7–6, 6–4 scoreline. She eventually reached the third round.
Her best Grand Slam showings were two fourth round appearances, the first in Melbourne 2002, the latter at the French Open 2004. In that year she also reached her only WTA Tour final in Bali which she lost in straight sets to Svetlana Kuznetsova.
Weingärtner retired after the US Open 2005 after suffering several first round losses due to ongoing physical problems. She made a brief return in July 2008 to play the doubles event of the Gastein Ladies tournament where she partnered Sandra Klemenschits, losing in the quarterfinals to Xu Yifan and Zhang Shuai.
WTA career finals
Singles: (1 runner-up)
| Outcome | No. | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|---|
| Runner-up | 1. | 19 September 2004 | Bali, Indonesia | Hard |  Svetlana Kuznetsova |
1–6, 4–6 |
Doubles: (1 title, 1 runner-up)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Winner | 1. | 22 August 2004 | Cincinnati, United States | Hard |  Jill Craybas |
 Emmanuelle Gagliardi Anna-Lena Grönefeld |
7–5, 7–6(7–2) |
| Runner-up | 1. | 31 October 2004 | Luxembourg, Luxembourg | Hard (i) | Jill Craybas |
 Virginia Ruano Pascual Paola Suárez |
1–6, 7–6(7–1), 3–6 |