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| Gold Coast Tier III Hard | Jan 9 2000 |
| Qual 1 | Garbin(7) - Nana Smith | 7-5 6-0 |
| Qual 2 | Garbin(7) - Amanda Grahame | 6-4 6-76 6-2 |
| Qual 3 | Garbin(7) - Debbie Graham | 6-3 6-2 |
| 1 | Garbin-Q - Magdalena Grzybowska | 6-2 6-3 |
| 2 | Nathalie Dechy(6) - Garbin-Q | 6-3 6-3 |
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| Australian Open Hard | Jan 30 2000 |
| Qual 1 | Garbin(1) - Giulia Casoni | 6-3 6-3 |
| Qual 2 | Garbin(1) - Rennae Stubbs | 5-7 7-65 8-6 |
| Qual 3 | Garbin(1) - Nuria Llagostera Vives | 6-3 3-6 6-2 |
| 1 | Ruxandra Dragomir Ilie - Garbin-Q | 7-5 6-4 |
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| Pan Pacific Open Tier I Carpet | Feb 6 2000 |
| Qual 1 | Garbin - Riei Kawamata | 6-2 6-0 |
| Qual 2 | Garbin - Erika De Lone(1) | 6-3 7-63 |
| Qual 3 | Garbin - Els Callens(6) | 5-7 6-3 6-2 |
| 1 | Corina Morariu - Garbin-Q | 6-3 6-3 |
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| Bogota Tier IVA Clay | Feb 13 2000 |
| 1 | Garbin - Maria Vento-Kabchi | 6-3 6-74 6-3 |
| 2 | Garbin - Fabiola Zuluaga(2) | 6-1 6-4 |
| QF | Garbin - Meghann Shaughnessy | 6-3 6-75 6-1 |
| SF | Garbin - Rita Kuti Kis | 2-6 6-1 6-2 |
| F | Patricia Wartusch - Garbin | 4-6 6-1 6-4 |
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| Sao Paolo Tier IVA Clay | Feb 20 2000 |
| 1 | Cristina Torrens Valero(3) - Garbin | 6-1 7-5 |
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| Key Biscayne Tier I Hard | Apr 2 2000 |
| Qual 1 | Samantha Reeves - Garbin(4) | 6-4 7-5 |
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| Estoril Tier IVA Clay | Apr 16 2000 |
| 1 | Garbin - Amanda Hopmans | 7-65 3-6 6-3 |
| 2 | Garbin - Anne-Gaelle Sidot(3) | 7-67 6-4 |
| QF | Garbin - Rita Kuti Kis(7) | 7-61 6-4 |
| SF | Anke Huber(1) - Garbin | 6-3 6-2 |
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| Budapest Tier IVB Clay | Apr 23 2000 |
| 1 | Garbin - Cristina Torrens Valero(5) | 6-2 7-5 |
| 2 | Garbin - Alicia Molik | 3-6 6-3 6-1 |
| QF | Garbin - Olga Barabanschikova | 4-6 6-0 6-1 |
| SF | Garbin - Sarah Pitkowski-Malcor(2) | 6-3 3-0 |
| F | Garbin - Kristie Boogert(7) | 6-2 7-64 |
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| Warsaw Tier IVB Clay | May 14 2000 |
| 1 | Garbin(3) - Annabel Ellwood | 4-6 6-4 6-1 |
| 2 | Garbin(3) - Libuse Prusova-Q | 7-5 2-6 6-3 |
| QF | Henrieta Nagyova - Garbin(3) | 6-3 7-62 |
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| Rome Tier I Clay | May 21 2000 |
| 1 | Garbin-WC - Nicole Pratt | 7-64 6-1 |
| 2 | Nathalie Tauziat(2) - Garbin-WC | 5-7 6-2 6-4 |
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| Strasbourg Tier III Clay | May 28 2000 |
| 1 | Garbin - Stephanie Foretz Gacon-WC | 7-5 6-1 |
| 2 | Nathalie Tauziat(1) - Garbin | 7-65 6-2 |
| | |
| Roland Garros Clay | Jun 11 2000 |
| 1 | Garbin - Radka Bobkova | 6-1 6-2 |
| 2 | Garbin - Lisa Raymond | 6-1 3-6 6-4 |
| 3 | Martina Hingis(1) - Garbin | 6-1 6-0 |
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| Wimbledon Grass | Jul 9 2000 |
| 1 | Patty Schnyder - Garbin | 6-3 6-2 |
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| Palermo Tier IVB Clay | Jul 16 2000 |
| 1 | Pavlina Nola - Garbin(4) | 2-6 6-1 6-3 |
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| Sopot Tier III Clay | Jul 23 2000 |
| 1 | Garbin - Tina Pisnik | 6-3 6-2 |
| 2 | Anke Huber(2) - Garbin | 6-3 6-3 |
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| Stanford Tier II Hard | Jul 30 2000 |
| 1 | Garbin - Rossana De Los Rios | 6-0 6-0 |
| 2 | Sandrine Testud(5) - Garbin | 6-2 6-71 7-5 |
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| Montreal Tier I Hard | Aug 20 2000 |
| 1 | Jennifer Capriati(13) - Garbin | 7-65 7-61 |
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| New Haven Tier II Hard | Aug 27 2000 |
| Qual 1 | Garbin(9) - Rita Grande | 6-1 7-63 |
| Qual 2 | Garbin(9) - Holly Parkinson | 7-65 6-4 |
| Qual 3 | Garbin(9) - Paola Suarez(4) | 7-64 7-5 |
| 1 | Elena Likhovtseva - Garbin-Q | 6-1 6-3 |
| | |
| US Open Hard | Sep 10 2000 |
| 1 | Garbin - Katalin Marosi | 6-1 6-1 |
| 2 | Garbin - Jelena Kostanic Tosic | 6-1 6-3 |
| 3 | Martina Hingis(1) - Garbin | 6-1 6-0 |
| | |
| Olympic Games Tier I Hard | Sep 24 2000 |
| 1 | Julie Halard-Decugis - Garbin | 6-4 6-2 |
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| Toyota Princess Cup Tier II Hard | Oct 8 2000 |
| 1 | Nicole Pratt - Garbin | 6-4 6-3 |
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| Japan Open Tier III Hard | Oct 15 2000 |
| 1 | Sylvia Plischke - Garbin(6) | 5-2 |