Stadium: Court 3 Round: 45 Ground: Clay
| ITF Women Hamamatsu | 2018/10/14 04:30 | 輿石 亜佑美 v 相川 真侑花 | 6-3,6-2 |
| ITF Women Hamamatsu | 2018/10/14 00:00 | Haraguchi, Sae v 相川 真侑花 | 1-6,6-3,5-7 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/07 03:00 | 宮本 愛弓 v 相川 真侑花 | 6-4,6-0 |
| ITF Women Kyoto | 2018/09/05 03:30 | 永田 杏里 永田 杏里 v 相川 真侑花 | 6-3,6-4 |
| ITF Women Kyoto | 2018/09/02 03:00 | 中島美優 v 相川 真侑花 | 4-6,4-6 |
| ITF Women Nanao | 2018/08/27 04:45 | 相川 真侑花 v So, Kumi | 2-6,4-6 |
| ITF Women Nanao | 2018/08/26 04:15 | イバナ・ポポビッチ v 相川 真侑花 | 4-6,4-6 |
| ITF Women Nanao | 2018/08/26 01:00 | 相川 真侑花 v シミズ,チナツ | 6-3,6-3 |
| ITF W15アンタルヤ | 2019/01/16 09:00 | ユリア・スタマトヴァ v Sonoda, Ayano | 6-2,6-1 |
| ITF Women Hamamatsu | 2018/10/14 02:00 | Sonoda, Ayano v 柴原瑛菜 柴原瑛菜 | 1-6,0-6 |
| ITF Women Kyoto | 2018/09/02 01:00 | Sonoda, Ayano v 永田 杏里 永田 杏里 | 1-6,1-6 |
| ITF Women Nanao | 2018/08/26 03:25 | タカハタ,コトミ v Sonoda, Ayano | 6-4,6-0 |
| Antalya, Singles Qualifying W-WITF-TUR-04A | 2018/06/04 07:30 | Sonoda, Ayano v マリー・メトラウ | 1-6,1-6 |
| Antalya, Singles Qualifying W-WITF-TUR-04A | 2018/05/30 09:10 | Sonoda, Ayano v メリス・セゼル | 0-6,2-6 |
| ITF Women Antalya Qual | 2018/05/28 11:10 | Sonoda, Ayano v Belovukovic, Stephanie | 7-6,1-6,5-7 |
| ITF Women Kurume Qual | 2018/05/13 08:40 | 川崎光美 v Sonoda, Ayano | 6-1,6-1 |