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| Monterrey $10,000 Hard | Mar 28 2004 |
| 1 | Coassolo - Tara Wigan-LL | 6-4 6-4 |
| 2 | Sarah Riske - Coassolo | 6-0 6-2 |
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| Obregon $10,000 Hard | Apr 4 2004 |
| 1 | Katie Granson-Q - Coassolo | 6-0 6-1 |
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| Morelia $10,000 Hard | Apr 18 2004 |
| Qual 1 | Coassolo(3) | bye |
| Qual 2 | Alanna Broderick(10) - Coassolo(3) | 7-5 6-4 |
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| Poza Rica $25,000 Hard | Apr 25 2004 |
| Qual 1 | Renata Kucerkova(4) - Coassolo | 6-0 6-3 |
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| Coatzacoalcos $25,000 Hard | May 2 2004 |
| Qual 1 | Megan Falcon(1) - Coassolo | 6-1 6-3 |
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| Merida $10,000 Hard | May 9 2004 |
| 1 | Coassolo - Andrea Espinosa-WC | 6-0 6-1 |
| 2 | Flavia Mignola(8) - Coassolo | 6-3 6-0 |
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| Campos Do Jordao $25,000 Hard | Jul 18 2004 |
| Qual 1 | Coassolo(6) - Carolina Malheiros | 2-6 6-2 6-2 |
| Qual 2 | Coassolo(6) - Liege Vieira | 6-3 6-2 |
| Qual 3 | Fernanda Hermenegildo - Coassolo(6) | 7-5 7-5 |
| 1 | Bruna Colosio - Coassolo-LL | 6-2 6-0 |
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| Guayaquil $10,000 Hard | Aug 22 2004 |
| 1 | Soledad Esperon(3) - Coassolo | 6-2 6-1 |
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| Asuncion $10,000 Clay | Sep 5 2004 |
| 1 | Coassolo - Emilia Bindi-Q | 6-1 6-1 |
| 2 | Bruna Colosio(4) - Coassolo | 6-1 6-4 |
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| Santiago $10,000 Clay | Sep 12 2004 |
| 1 | Bruna Colosio(3) - Coassolo | 6-1 6-3 |
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| CD.Juarez $25,000 Clay | Oct 10 2004 |
| Qual 1 | Coassolo(8) | bye |
| Qual 2 | Coassolo(8) - Hiromi Okazaki(9) | 7-5 6-3 |
| 1 | Marcela Arroyo Vergara-WC - Coassolo-Q | 4-6 6-1 6-2 |
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| Mexico City $25,000 Hard | Oct 17 2004 |
| Qual 1 | Coassolo(11) - Lorena Rebolledo | 6-2 6-2 |
| Qual 2 | Heidi El Tabakh(6) - Coassolo(11) | 6-4 4-6 7-63 |
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| Aguascalientes $10,000 Clay | Oct 24 2004 |
| 1 | Coassolo - Tiffany Eklov-Q | 6-4 1-6 6-1 |
| 2 | Coassolo - Georgette Wright-Q | 6-2 6-4 |
| QF | Coassolo - Ali Van Horne-Q | 5-7 6-2 7-67 |
| SF | Jorgelina Cravero(7) - Coassolo | 7-62 6-1 |
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| Salta $10,000 Clay | Nov 7 2004 |
| 1 | Coassolo(5) - Jessica Weyreuter | 6-4 6-3 |
| 2 | Florencia Molinero - Coassolo(5) | 6-2 6-2 |