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| Waikoloa $50,000 Hard | Jan 29 2006 |
| Qual 1 | Sugano - Jessica Williams | 6-1 4-6 6-0 |
| Qual 2 | So-Jung Kim(7) - Sugano | 6-2 6-0 |
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| Sydney $25,000 Hard | Feb 19 2006 |
| Qual 1 | Sugano(8) - Yuko Kurata | 6-2 6-0 |
| Qual 2 | Sugano(8) - Monique Lynch | 6-2 6-2 |
| Qual 3 | Shao-Yuan Kao - Sugano(8) | 7-64 3-6 6-0 |
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| Gosford $25,000 Hard | Feb 26 2006 |
| Qual 1 | Sevvy Gallios - Sugano(7) | 7-5 6-2 |
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| Poza Rica $25,000 Hard | Apr 2 2006 |
| Qual 1 | Sugano | bye |
| Qual 2 | Leticia Sobral(3) - Sugano | 6-2 6-2 |
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| Coatzacoalcos $25,000 Hard | Apr 9 2006 |
| Qual 1 | Sugano - Nazari Urbina | 6-4 6-3 |
| Qual 2 | Remi Tezuka - Sugano | 6-2 4-6 6-4 |
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| San Luis Potosi $25,000 Clay | Apr 16 2006 |
| Qual 1 | Sugano(8) | bye |
| Qual 2 | Sugano(8) - Maria-Paula Hernandez | 6-3 7-63 |
| Qual 3 | Christina Fusano(11) - Sugano(8) | 6-3 6-4 |
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| Jakarta $10,000 Hard | May 7 2006 |
| 1 | Sugano(4) - Mutsuko Hirose | 6-1 6-1 |
| 2 | Sugano(4) - Wei-Ping Lee-Q | 6-0 6-0 |
| QF | Pichittra Thongdach(8) - Sugano(4) | 2-6 6-4 6-3 |
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| Tarakan $10,000 Hard | May 14 2006 |
| 1 | Lavinia Tananta - Sugano(3) | 2-6 6-3 6-2 |
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| Taipei $10,000 Hard | May 21 2006 |
| 1 | Sugano(3) - Yu-Ting Lin | 4-6 6-1 6-1 |
| 2 | Sugano(3) - Lu-Ling Chen | 6-2 6-1 |
| QF | Sugano(3) - Kaori Aoyama | 6-4 |
| SF | Sugano(3) - Wen-Ling Wang | 6-2 6-1 |
| F | Sugano(3) - Cassandra Barr(2) | 6-2 6-1 |
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| Nagano $25,000 Carpet | May 28 2006 |
| Qual 1 | Kasumi Aiko - Sugano(6) | 3-6 6-4 4-3 |
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| Gunma $25,000 Carpet | Jun 4 2006 |
| Qual 1 | Sugano(7) - Yuko Kurata | 7-5 6-0 |
| Qual 2 | Erika Sema(10) - Sugano(7) | 6-4 5-7 6-3 |
| | |
| Inchon $25,000 Hard | Jun 18 2006 |
| Qual 1 | Sugano(3) | bye |
| Qual 2 | Sugano(3) - Ji-Youn Lee | 6-1 2-6 6-0 |
| Qual 3 | Mi-Ok Kim(10) - Sugano(3) | 6-4 6-2 |
| | |
| Changwon $25,000 Hard | Jun 25 2006 |
| Qual 1 | Sun-Jung Kim - Sugano(8) | 6-3 6-3 |
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| Nagoya $25,000 Hard | Jul 9 2006 |
| Qual 1 | Sugano(7) - Yukiko Yabe | 6-3 3-6 6-3 |
| Qual 2 | Sugano(7) - Eriko Mizuno | 6-1 6-0 |
| Qual 3 | Chiaki Okadaue(10) - Sugano(7) | 6-2 6-1 |
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| Miyazaki $25,000 Carpet | Jul 16 2006 |
| Qual 1 | Yukiko Yabe - Sugano(5) | 3-6 6-3 7-5 |
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| Chongqing $25,000 Hard | Jul 23 2006 |
| 1 | Sandy Gumulya - Sugano | 6-2 6-3 |
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| Chengdu $25,000 Hard | Jul 30 2006 |
| 1 | Melanie South(1) - Sugano | 6-1 4-6 7-5 |
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| Changsha $25,000 Hard | Aug 6 2006 |
| 1 | Katie O'Brien(2) - Sugano | 6-2 6-4 |
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| Nanjing $25,000 Hard | Aug 27 2006 |
| Qual 1 | Sugano(6) | bye |
| Qual 2 | Sugano(6) - Jia-Ni Yan | 6-1 6-3 |
| Qual 3 | Sugano(6) - Quan Gao | 7-63 6-2 |
| 1 | Shengnan Sun - Sugano-Q | 4-6 6-1 6-1 |
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| Guanzhou $50,000 Hard | Sep 3 2006 |
| Qual 1 | Hee Sun Lyoo-Suh - Sugano(7) | 6-4 6-0 |
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| Ibaraki $25,000 Hard | Sep 24 2006 |
| Qual 1 | Kasumi Aiko - Sugano(9) | 6-1 1-6 7-5 |
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| Tokyo $50,000 Hard | Oct 1 2006 |
| Qual 1 | Sugano - Kanae Hisami | 7-5 6-2 |
| Qual 2 | Chiaki Okadaue(5) - Sugano | 7-65 6-1 |
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| Makinohara $25,000 Carpet | Oct 22 2006 |
| Qual 1 | Misaki Doi - Sugano(4) | 6-4 6-4 |
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| Hamanako $25,000 Carpet | Oct 29 2006 |
| Qual 1 | Sugano(5) - Kei Sekine | 6-2 6-1 |
| Qual 2 | Marlot Meddens(15) - Sugano(5) | 3-6 6-0 6-2 |
| | |
| Sutama $25,000 Clay | Nov 5 2006 |
| Qual 1 | Sugano(1) - Yue Wan | 6-2 6-0 |
| Qual 2 | Sugano(1) - Monika Krauze | 1-6 6-3 6-3 |
| 1 | Sugano-Q - Anastasia Malhotra | 5-7 6-1 7-62 |
| 2 | Florence Haring(6) - Sugano-Q | 6-2 6-2 |
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| Jakarta $25,000 Hard | Nov 12 2006 |
| 1 | Sugano - Wei-Ping Lee-LL | 7-5 6-2 |
| 2 | Sandy Gumulya(4) - Sugano | 6-4 6-0 |