| | |
| Hull $10,000 Hard | Jan 26 2003 |
| 1 | Groenefeld - Iveta Gerlova | 6-4 6-2 |
| 2 | Groenefeld - Matea Mezak-Q | 6-3 6-4 |
| QF | Groenefeld - Irina Bulykina(7) | 6-3 4-6 6-0 |
| SF | Groenefeld - Elke Clijsters-Q | 5-7 6-2 6-3 |
| F | Groenefeld - Tessy Van De Ven | 7-64 6-3 |
| | |
| Tipton $10,000 Hard | Feb 2 2003 |
| 1 | Groenefeld - Jenny Lindstrom | 6-3 7-5 |
| 2 | Groenefeld - Lenka Tvaroskova(5) | 7-5 6-4 |
| QF | Matea Mezak-Q - Groenefeld | 7-65 1-6 6-3 |
| | |
| Buchen $10,000 Carpet | Feb 23 2003 |
| Qual 1 | Groenefeld(1) - Laura-Ramona Husaru | 4-6 7-64 6-2 |
| Qual 2 | Groenefeld(1) - Lisa Fritz | 6-1 6-3 |
| 1 | Andrea Petkovic-WC - Groenefeld-Q | 2-6 7-64 6-3 |
| | |
| Mesa $50,000 Hard | Mar 16 2003 |
| 1 | Klara Koukalova(2) - Groenefeld-WC | 7-65 6-2 |
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| Redding $25,000 Hard | Mar 23 2003 |
| 1 | Groenefeld - Tiffany Dabek-WC | 6-3 6-2 |
| 2 | Jie Zheng(7) - Groenefeld | 6-4 6-1 |
| | |
| Bol Tier III Clay | May 4 2003 |
| Qual 1 | Groenefeld - Trudi Musgrave | 6-4 6-2 |
| Qual 2 | Groenefeld - Ivana Abramovic(8) | 7-63 6-2 |
| Qual 3 | Groenefeld - Maria Kirilenko | 7-65 6-2 |
| 1 | Groenefeld-Q - Eva Birnerova | 6-2 6-1 |
| 2 | Vera Zvonareva(3) - Groenefeld-Q | 2-6 6-3 7-68 |
| | |
| Berlin Tier I Clay | May 11 2003 |
| Qual 1 | Groenefeld-WC - Sarah Taylor(8) | 6-4 6-4 |
| Qual 2 | Groenefeld-WC - Syna Schreiber-WC | 6-0 6-3 |
| 1 | Daja Bedanova - Groenefeld-Q | 6-2 6-3 |
| | |
| Madrid Tier III Clay | May 25 2003 |
| Qual 1 | Alina Jidkova(5) - Groenefeld-WC | 7-64 6-0 |
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| Hamilton $25,000 Clay | Jun 15 2003 |
| 1 | Groenefeld(2) - Megan Moulton-Levy-Q | 6-3 6-2 |
| 2 | Groenefeld(2) - Melanie Gloria-WC | 6-0 7-5 |
| QF | Groenefeld(2) - Eunice David-WC | 6-1 6-0 |
| SF | Groenefeld(2) - Stephanie Dubois | 6-0 6-3 |
| F | Groenefeld(2) - Beier Ko(6) | 6-3 6-3 |
| | |
| Los Gatos $50,000 Hard | Jul 6 2003 |
| 1 | Groenefeld(8) - Kristen Schlukebir-Q | 7-64 7-65 |
| 2 | Groenefeld(8) - Alexandra Podkolzina-Q | 6-0 6-2 |
| QF | Alyssa Cohen-Q - Groenefeld(8) | 7-66 6-2 |
| | |
| Vancouver $25,000 Hard | Jul 13 2003 |
| 1 | Groenefeld(1) - Amber Liu | 6-4 6-0 |
| 2 | Groenefeld(1) - Beier Ko | 6-3 6-0 |
| QF | Groenefeld(1) - Hana Sromova(5) | 6-2 3-6 6-1 |
| SF | Groenefeld(1) - Melanie Marois(3) | 6-74 6-3 6-2 |
| F | Groenefeld(1) - Vilmarie Castellvi-Q | 6-2 6-4 |
| | |
| Oyster Bay $50,000 Hard | Jul 20 2003 |
| 1 | Groenefeld - Meilen Tu(5) | 2-6 6-3 6-3 |
| 2 | Groenefeld - Christina Wheeler | 6-2 3-6 6-4 |
| QF | Groenefeld - Gabriela Lastra | 6-1 6-2 |
| SF | Groenefeld - Kristina Brandi(6) | 2-6 6-3 6-2 |
| F | Groenefeld - Bethanie Mattek-Sands(7) | 6-3 6-0 |
| | |
| Lexington $50,000 Hard | Jul 27 2003 |
| 1 | Groenefeld - Jessica Lehnhoff | 6-3 6-2 |
| 2 | Groenefeld - Christina Wheeler | 7-66 6-4 |
| QF | Miho Saeki - Groenefeld | 5-7 7-63 7-62 |
| | |
| US Open Hard | Sep 7 2003 |
| Qual 1 | Groenefeld - Anastasia Rodionova(20) | 7-5 6-2 |
| Qual 2 | Teryn Ashley - Groenefeld | 6-2 6-2 |
| | |
| Bali Tier III Hard | Sep 14 2003 |
| 1 | Groenefeld - Tian Tian Sun-Q | 6-4 6-74 6-1 |
| 2 | Elena Dementieva(2) - Groenefeld | 6-4 6-1 |
| | |
| Shanghai Tier II Hard | Sep 21 2003 |
| Qual 1 | Groenefeld(9) - Shuai Peng-WC | 7-63 6-1 |
| Qual 2 | Groenefeld(9) - Ting Li (sr) | 6-3 6-2 |
| Qual 3 | Tathiana Garbin(5) - Groenefeld(9) | 7-65 6-4 |
| | |
| Leipzig Tier II Carpet | Sep 28 2003 |
| 1 | Groenefeld-WC - Barbara Schett-WC | 6-3 6-4 |
| 2 | Nadia Petrova(6) - Groenefeld-WC | 3-6 6-1 6-4 |
| | |
| Filderstadt Tier II Hard | Oct 12 2003 |
| 1 | Conchita Martinez - Groenefeld-WC | 7-64 6-2 |
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| Zurich Tier I Hard | Oct 19 2003 |
| Qual 1 | Magui Serna(2) - Groenefeld-WC | 6-4 6-3 |
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| Linz Tier II Hard | Oct 26 2003 |
| Qual 1 | Groenefeld - Adriana Jerabek | 6-0 6-3 |
| Qual 2 | Groenefeld - Tatiana Perebiynis(5) | 6-3 6-3 |
| Qual 3 | Maja Matevzic(1)-WC - Groenefeld | 6-1 6-4 |
| | |
| Philadelphia Tier II Hard | Nov 2 2003 |
| Qual 1 | Groenefeld(5) - Jewel Peterson-WC | 6-4 6-2 |
| Qual 2 | Groenefeld(5) - Lioudmila Skavronskaia-WC | 6-3 6-74 6-3 |
| Qual 3 | Jelena Jankovic(1) - Groenefeld(5) | 6-1 6-2 |
| 1 | Meghann Shaughnessy(9) - Groenefeld-LL | 6-3 6-2 |
| | |
| Pittsburgh $50,000 Hard | Nov 9 2003 |
| 1 | Groenefeld - Tzipora Obziler(8) | 6-4 6-4 |
| 2 | Teryn Ashley - Groenefeld | 6-1 6-3 |
| | |
| Eugene $50,000 Hard | Nov 16 2003 |
| 1 | Groenefeld(8) - Bethanie Mattek-Sands | 7-5 6-3 |
| 2 | Teryn Ashley - Groenefeld(8) | 3-6 6-3 6-3 |
| | |
| Puebla $25,000 Hard | Nov 23 2003 |
| 1 | Groenefeld(2) - Kaysie Smashey-Q | 7-5 6-2 |
| 2 | Groenefeld(2) - Tessy Van De Ven | 6-3 7-63 |
| QF | Kyra Nagy(6) - Groenefeld(2) | 6-2 6-4 |