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| Tampa $10,000 Hard | Jan 18 2004 |
| Qual 1 | Riske(3) - Marta Simic | 6-2 4-1 |
| Qual 2 | Riske(3) - Lolita Frangulyan | 7-5 6-2 |
| Qual 3 | Christina Fusano - Riske(3) | 6-2 4-6 6-2 |
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| Waikoloa $50,000 Hard | Feb 1 2004 |
| Qual 1 | Riske - Estelle Vicquenault | 6-3 6-2 |
| Qual 2 | Lana Popadic(1) - Riske | 6-4 6-0 |
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| Columbus $25,000 Hard | Feb 22 2004 |
| Qual 1 | Kathrin Woerle-Scheller(16) - Riske-WC | 7-5 6-4 |
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| Monterrey $10,000 Hard | Mar 28 2004 |
| 1 | Riske - Flavia Mignola(5) | 6-4 6-0 |
| 2 | Riske - Brenda Coassolo | 6-0 6-2 |
| QF | Natalia Garbellotto(4) - Riske | 4-6 6-2 6-4 |
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| Obregon $10,000 Hard | Apr 4 2004 |
| 1 | Riske - Natalia Garbellotto(4) | 6-2 6-3 |
| 2 | Riske - Carolina Escamilla | 6-3 6-0 |
| QF | Riske - Sabrina Eisenberg(7) | 6-2 6-2 |
| SF | Riske - Flavia Mignola(6) | 6-4 5-7 7-5 |
| F | Ayami Takase(2) - Riske | 7-65 6-2 |
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| Morelia $10,000 Hard | Apr 18 2004 |
| Qual 1 | Riske(1) | bye |
| Qual 2 | Riske(1) - Lorena Villalobos | 6-0 6-3 |
| 1 | Riske-Q - Sarah Borwell | 6-4 6-1 |
| 2 | Riske-Q - Florencia Salvadores | 6-1 6-2 |
| QF | Riske-Q - Katie Granson-Q | 6-1 6-4 |
| SF | Ipek Senoglu(2) - Riske-Q | 7-5 6-3 |
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| Poza Rica $25,000 Hard | Apr 25 2004 |
| Qual 1 | Riske(8) - Viky Nunez Fuentes-WC | 6-4 6-4 |
| Qual 2 | Ahsha Rolle(14) - Riske(8) | 6-2 6-4 |
| 1 | Riske-LL - Zsuzsanna Babos | 6-0 7-65 |
| 2 | Riske-LL - Erica Biro | 5-7 3-0 |
| QF | Jessica Nguyen-Q - Riske-LL | 6-3 6-4 |
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| Coatzacoalcos $25,000 Hard | May 2 2004 |
| Qual 1 | Riske(13) - Ana Lucia Migliarini De Leon | 6-75 6-0 6-1 |
| Qual 2 | Riske(13) - Flavia Mignola(5) | 4-6 6-2 6-3 |
| 1 | Frederica Piedade(6) - Riske-Q | 6-1 6-1 |
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| Galatina $25,000 Clay | Jun 6 2004 |
| Qual 1 | Riske(12) | bye |
| Qual 2 | Riske(12) - Daniela Bracaglia | 6-4 7-5 |
| Qual 3 | Riske(12) - Giorgia Mortello | 6-4 6-4 |
| 1 | Riske-Q - Francesca Lubiani | 7-64 7-5 |
| 2 | Olga Blahotova - Riske-Q | 6-1 6-0 |
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| Grado $25,000 Clay | Jun 13 2004 |
| 1 | Riske - Maria-Fernanda Alves(4) | 6-2 6-4 |
| 2 | Astrid Waernes-LL - Riske | 5-7 6-4 7-5 |
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| Gorizia $25,000 Clay | Jun 20 2004 |
| Qual 1 | Giulia Gatto-Monticone - Riske | 7-5 6-4 |
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| Perigueux $25,000 Clay | Jun 27 2004 |
| Qual 1 | Riske(4) - Nadege Vergos | 6-0 7-65 |
| Qual 2 | Riske(4) - Violette Huck(12) | 4-6 6-2 6-4 |
| 1 | Valentina Sassi - Riske-Q | 5-7 6-3 6-2 |
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| Lexington $50,000 Hard | Aug 1 2004 |
| Qual 1 | Varvara Lepchenko - Riske | 6-3 4-6 6-4 |
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| Louisville $50,000 Hard | Aug 8 2004 |
| Qual 1 | Riske - Laura Ritchey-Thomas | 6-1 6-1 |
| Qual 2 | Nannan Liu(2) - Riske | 6-3 6-2 |
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| Tunica Resorts $25,000 Clay | Sep 26 2004 |
| 1 | Julie Ditty(4) - Riske | 6-2 6-3 |
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| Birmingham $25,000 Clay | Oct 3 2004 |
| 1 | Flavia Mignola - Riske | 6-3 6-0 |
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| Cary $50,000 Hard | Oct 24 2004 |
| Qual 1 | Tanner Cochran - Riske | 7-67 6-4 |
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| Quebec Tier III Hard | Nov 7 2004 |
| Qual 1 | Beier Ko - Riske | 7-5 2-6 6-4 |
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| Pittsburgh $50,000 Hard | Nov 14 2004 |
| Qual 1 | Olga Puchkova - Riske-WC | 7-5 6-1 |
| Qual 1 | Riske - Salome Devidze | 6-2 6-4 |
| Qual 2 | Angelika Roesch(5) - Riske | 3-6 6-3 6-4 |
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| Tucson $50,000 Hard | Nov 21 2004 |
| Qual 1 | Riske(8) - Jennifer Tuchband | 6-3 6-4 |
| Qual 2 | Riske(8) - Daniela Klemenschits | 6-0 6-1 |
| Qual 3 | Anne Mall(3) - Riske(8) | 6-1 6-2 |