Stadium: Court 7 Round: 54
| ITF Women Fort Worth | 2017/08/06 14:00 | Stewart, Katerina v Emiliana Arango | 6-4,6-1 |
| ITF Women Landisville Qual | 2018/08/05 15:00 | Stewart, Katerina v Rodgers, Amanda | 6-3,6-3 |
| Prague, Singles W-WITF-CZE-06A | 2018/07/27 09:00 | Di Giuseppe, Martina v Stewart, Katerina | 6-3,6-4 |
| Prague, Singles W-WITF-CZE-06A | 2018/07/26 10:35 | Stewart, Katerina v Cadantu, Alexandra | 7-6,7-5 |
| Prague, Singles W-WITF-CZE-06A | 2018/07/25 09:00 | Hradecka, Lucie v Stewart, Katerina | 7-5,6-7,3-6 |
| ITF Women Olomouc | 2018/07/19 10:35 | Stewart, Katerina v Anhelina Kalinina | 6-7,7-6,6-7 |
| ITF Women Olomouc | 2018/07/18 10:30 | Stewart, Katerina v Marfutina, Maria | 6-0,6-2 |
| ITF Women Budapest | 2018/07/10 12:10 | Stewart, Katerina v Yafan Wang | 6-4,3-6,3-6 |
| Rome, Singles W-WITF-ITA-10A | 2018/07/03 10:30 | Sofya Zhuk v Stewart, Katerina | 6-7,6-1,6-1 |
| WTA San Jose Qual | 2018/07/28 19:30 | Magdalena Frech v Emiliana Arango | 6-3,3-6,6-1 |
| ITF Women Ashland | 2018/07/25 14:00 | Emiliana Arango v Nao Hibino | 2-6,1-6 |
| ITF Women Berkeley | 2018/07/18 17:00 | Emiliana Arango v Ahn, Kristie | 4-6,1-6 |
| ITF Women Honolulu | 2018/07/12 21:35 | Emina Bektas v Emiliana Arango | 6-2,7-5 |
| ITF Women Honolulu | 2018/07/11 00:40 | Emiliana Arango v Lutzeier, Lena | 7-5,6-2 |
| ITF Women Baton Rouge | 2018/06/20 14:00 | Emiliana Arango v Ma, Connie | 3-6,2-6 |
| ITF Women Bethany Beach | 2018/06/05 17:15 | Raveena Kingsley v Emiliana Arango | 6-1,6-1 |
| ITF Women Naples | 2018/05/29 16:45 | Emiliana Arango v Ksenia Laskutova | 6-2,5-7,5-7 |