Kathy Rinaldi-Stunkel (born March 24, 1967) is an American former professional tennis player, who retired in September 1997. In her career she won three singles and two doubles titles on the WTA Tour, and reached the semifinals of the 1985 Wimbledon Championships.
In 1981, Rinaldi became the youngest player to win a match at Wimbledon (14 years, 91 days), a record that stood until 1990. After the 1987 French Open, she suffered a freak injury in Monte Carlo, slipping on stairs, and in trying to catch herself, fracturing her right thumb. This injury sidelined her for the rest of the year. She was a member of the US Wightman Cup Team in 1983, 1985, and 1986.
| {class="wikitable sortable mw-collapsible mw-collapsed" ! Legend |
| Grand Slam tournaments (0–0) |
| WTA Tour Championships (0–0) |
| Virginia Slims, Avon, other (3–4) |
| Hard (2–1) |
| Grass (0–0) |
| Clay (0–2) |
| Carpet (1–1) |
| Win | 1–0 | Oct 1981 | Kyoto, Japan | Hard | Julie Harrington | 6–1, 7–5 |
| Loss | 1–1 | May 1982 | Berlin, West Germany | Clay | Bettina Bunge | 2–6, 2–6 |
| Loss | 1–2 | Jul 1982 | San Diego, US | Hard | Tracy Austin | 6–7(5–7), 3–6 |
| Win | 2–2 | Aug 1985 | Mahwah, US | Hard | Steffi Graf | 6–4, 3–6, 6–4 |
| Loss | 2–3 | Sep 1985 | Ameritech Cup, US | Carpet (i) | Bonnie Gadusek | 1–6, 3–6 |
| Loss | 2–4 | May 1986 | Houston, US | Clay | Chris Evert-Lloyd | 4–6, 6–2, 4–6 |
| Win | 3–3 | Nov 1986 | Little Rock, US | Carpet (i) | Natasha Zvereva | 6–4, 6–7(7–9), 6–0 |
| { class="wikitable sortable mw-collapsible mw-collapsed" ! Legend |
| Grand Slam tournaments (0–0) |
| Tier I (0–2) |
| Tier II (1–2) |
| Tier III (1–3) |
| Tier IV (0–2) |
| Tier V (1–1) |
| Hard (1–7) |
| Grass (0–0) |
| Clay (1–2) |
| Carpet (0–1) |
| Loss | 1. | Mar 1991 | San Antonio | Hard | Jill Hetherington | Patty Fendick Monica Seles | 6–7(2–7), 2–6 |
| Win | 1. | Apr 1991 | Houston | Clay | Jill Hetherington | Patty Fendick Mary Joe Fernández | 6–1, 2–6, 6–1 |
| Win | 2. | Aug 1991 | San Diego | Hard | Jill Hetherington | Gigi Fernández Nathalie Tauziat | 6–4, 3–6, 6–2 |
| Loss | 2. | Oct 1991 | Leipzig | Carpet (i) | Jill Hetherington | Manon Bollegraf Isabelle Demongeot | 4–6, 3–6 |
| Loss | 3. | Feb 1992 | Auckland | Hard | Jill Hetherington | Rosalyn Fairbank Raffaella Reggi | 6–1, 1–6, 5–7 |
| Loss | 4. | Mar 1992 | Indian Wells | Hard | Jill Hetherington | Claudia Kohde-Kilsch Stephanie Rehe | 3–6, 3–6 |
| Loss | 5. | Mar 1992 | Key Biscayne | Hard | Jill Hetherington | Larisa Neiland Arantxa Sánchez Vicario | 5–7, 7–5, 3–6 |
| Loss | 6. | Apr 1992 | Houston | Clay | Jill Hetherington | Patty Fendick Gigi Fernández | 5–7, 4–6 |
| Loss | 7. | Nov 1992 | San Juan | Hard | Gigi Fernández | Amanda Coetzer Elna Reinach | 2–6, 6–4, 2–6 |
| Loss | 8. | Feb 1993 | Auckland | Hard | Jill Hetherington | Isabelle Demongeot Elna Reinach | 2–6, 4–6 |
| Loss | 9. | Mar 1993 | Key Biscayne | Hard | Jill Hetherington | Larisa Neiland Jana Novotná | 2–6, 5–7 |
| Loss | 10. | May 1993 | Strasbourg | Clay | Jill Hetherington | Shaun Stafford Andrea Temesvári | 7–6(7–5), 3–6, 4–6 |
| Australian Open | A | A | 1R | 3R | A | NH | A | A | A | 2R | 1R | A | 1R | 1R | A | A | 3–6 |
| French Open | QF | 4R | 4R | 3R | 3R | QF | 3R | 1R | 2R | 1R | 2R | 1R | 3R | A | A | A | 24–13 |
| Wimbledon | 2R | 3R | 4R | 1R | SF | 1R | A | A | 1R | 1R | 1R | 2R | 2R | A | A | 1R | 13–12 |
| US Open | 1R | 4R | 2R | 2R | 1R | 1R | A | 1R | 2R | 2R | 2R | 2R | 1R | A | 1R | 1R | 9–14 |
| Win–loss | 5–3 | 8–3 | 7–4 | 5–4 | 7–3 | 4–3 | 2–1 | 0–2 | 2–3 | 2–4 | 2–4 | 2–3 | 3–4 | 0–1 | 0–1 | 0–2 | 49–45 |
| Year-end ranking | 33 | 15 | 14 | 23 | 11 | 8 | 26 | 88 | 52 | 69 | 105 | 111 | 83 | NR | NR | 225 |
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