Stadium: Court B4 Round: 54 Ground: Hardcourt outdoor
| Nonthaburi, Singles W-WITF-THA-09A | 2018/08/11 06:45 | 小関 みちか v 井上 明里 | 6-3,6-4 |
| Nonthaburi, Singles W-WITF-THA-09A | 2018/08/04 06:45 | 荒川 春菜 v 井上 明里 | 6-2,6-1 |
| ITF Women Hong Kong | 2018/07/11 02:00 | ミカエラ・ハート v 井上 明里 | 6-2,7-6 |
| ITF Women Hong Kong | 2018/07/09 02:00 | 井上 明里 v ミヒカ・ヤダブ | 4-6,7-5,7-6 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | リウ・イェンニ v 井上 明里 | 7-6,6-3 |
| ITF Women Daegu Qual | 2018/06/18 02:00 | Kong, Qianxin v 井上 明里 | 4-6,3-6 |
| ITF Women Gyeongsan Qual | 2018/06/12 01:00 | 井上 明里 v シミズ・エリ | 6-7,7-6,2-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | 井上 明里 v Kong, Qianxin | 6-1,5-7,6-3 |
| ITF Women Daegu | 2018/06/20 05:20 | Nishimoto, Megumi v ス,チン・ウェン | 4-6,1-6 |
| ITF Women Karuizawa Qual | 2018/05/21 02:20 | Nishimoto, Megumi v シミズ・エリ | 2-6,6-7 |
| ITF Women Kurume Qual | 2018/05/15 01:00 | Nishimoto, Megumi v アナスタシア・E ネフェドワ | 6-4,5-7,1-6 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Miyahara, Mihoki v Nishimoto, Megumi | 6-2,6-7,1-6 |
| ITF Women Kurume Qual | 2018/05/13 09:10 | Kusano, Kyoka v Nishimoto, Megumi | 0-6,0-6 |
| ITF Women Fukuoka Qual | 2018/05/06 01:00 | カジタニ,ロブ v Nishimoto, Megumi | 6-4,6-2 |
| ITF Women Osaka Qual | 2018/04/07 01:30 | 村松 千裕 v Nishimoto, Megumi | 6-1,6-1 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 00:30 | Medcalf, Anne-Marie v Nishimoto, Megumi | 7-6,3-6,7-5 |