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| Stuttgart $10,000 Hard | Jan 20 2008 |
| 1 | Aleksandra Grela - Avdiyenko | 7-5 2-6 6-1 |
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| Kaarst $10,000 Carpet | Jan 27 2008 |
| 1 | Avdiyenko - Lucie Kriegsmannova | 6-3 7-5 |
| 2 | Anastasia Poltoratskaya(8) - Avdiyenko | 6-4 6-4 |
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| Vale Do Lobo $10,000 Hard | Feb 10 2008 |
| 1 | Avdiyenko(8) - Tina Pieger | 1-6 6-2 6-2 |
| 2 | Vasilisa Davydova - Avdiyenko(8) | 6-73 6-2 6-4 |
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| Albufeira - Montechoro $10,000 Hard | Feb 17 2008 |
| 1 | Natasha Khan - Avdiyenko(5) | 6-4 6-4 |
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| Portimao $10,000 Hard | Feb 24 2008 |
| 1 | Avdiyenko(5) - Kristina Benashvili | 6-0 6-1 |
| 2 | Naomi Broady - Avdiyenko(5) | 5-7 7-5 6-4 |
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| Cairo $10,000 Clay | Mar 16 2008 |
| 1 | Avdiyenko(1) - Liudmila Nikoyan | 7-62 2-6 6-4 |
| 2 | Avdiyenko(1) - Virag Nemeth | 3-6 6-2 6-3 |
| QF | Avdiyenko(1) - Camelia-Elena Hristea | 6-4 6-3 |
| SF | Elena Chalova - Avdiyenko(1) | 7-5 7-66 |
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| Ain Alsoukhna $10,000 Clay | Mar 23 2008 |
| 1 | Avdiyenko(1) - Iuliia Kiriienko | 6-3 6-0 |
| 2 | Avdiyenko(1) - Palma Kiraly | 5-7 6-4 6-0 |
| QF | Avdiyenko(1) - Fatima Zahrae El Allami | 6-2 6-4 |
| SF | Katarzyna Piter - Avdiyenko(1) | 7-5 6-4 |
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| Cairo $10,000 Clay | Mar 30 2008 |
| 1 | Avdiyenko(1) - Jasmina Kajtazovic | 6-3 6-3 |
| 2 | Albina Khabibulina - Avdiyenko(1) | 6-3 6-2 |
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| Namangan $25,000 Hard | Apr 27 2008 |
| 1 | Avdiyenko(6) - Julia Lyndina | 6-4 6-1 |
| 2 | Alexandra Kolesnichenko - Avdiyenko(6) | 6-3 6-3 |
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| Jounieh $50,000 Clay | May 11 2008 |
| 1 | Marie-Eve Pelletier(8) - Avdiyenko | 6-1 6-1 |
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| Moscow $25,000 Clay | May 25 2008 |
| 1 | Lesia Tsurenko - Avdiyenko | 7-67 6-75 6-2 |
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| Kharkiv $25,000 Clay | Jul 27 2008 |
| 1 | Avdiyenko - Nadezda Gorbachkova | 4-6 6-2 7-64 |
| 2 | Natalia Orlova - Avdiyenko | 6-2 5-7 6-0 |
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| Dnipropetrovsk $50,000 Clay | Aug 3 2008 |
| Qual 1 | Elena Chalova - Avdiyenko(1) | 6-4 3-1 |
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| Innsbruck $10,000 Clay | Sep 14 2008 |
| 1 | Avdiyenko(4) - Karolina Nowak | 6-3 6-1 |
| 2 | Veronika Sepp - Avdiyenko(4) | 6-1 7-64 |
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| Kharkiv $10,000 Carpet | Oct 19 2008 |
| Qual 1 | Avdiyenko(1) - Lidziya Marozava | 6-0 6-1 |
| Qual 2 | Avdiyenko(1) - Ekaterina Pushkareva | 6-1 6-2 |
| 1 | Avdiyenko(7) - Iuliia Kiriienko | 6-1 6-1 |
| 2 | Elina Gasanova - Avdiyenko(7) | 6-4 6-0 |
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| Mallorca $10,000 Clay | Nov 9 2008 |
| 1 | Avdiyenko - Sandra Soler-Sola(8) | 4-6 6-3 6-2 |
| 2 | Avdiyenko - Ashley Weinhold | 6-2 6-4 |
| QF | Avdiyenko - Ekaterine Gorgodze | 6-4 2-6 6-3 |
| SF | Avdiyenko - Cristina Sanchez-Quintanar | 7-6 6-1 |
| F | Michelle Gerards(2) - Avdiyenko | 7-63 6-4 |
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| Mallorca $10,000 Clay | Nov 16 2008 |
| 1 | Paula Fondevila Castro(1) - Avdiyenko | 4-6 6-2 6-1 |