Stadium: C Round: 62
| ITF Women Fort Worth Qual | 2018/07/29 14:00 | Ryngler, Alexa v Smith, Maria | 6-1,6-1 |
| ITF Women Ashland Qual | 2018/07/22 20:50 | Maegan Manasse v Ryngler, Alexa | 6-4,6-3 |
| ITF Women Berkeley Qual | 2018/07/15 19:00 | Catherine Harrison v Ryngler, Alexa | 4-6,6-4,6-3 |
| ITF Women Honolulu Qual | 2018/07/09 20:00 | Salma Ewing v Ryngler, Alexa | 6-2,4-6,6-2 |
| ITF Women Honolulu Qual | 2018/07/08 19:00 | Ryngler, Alexa v Lal, Raina Shay | 6-0,6-0 |
| Naples, Qualifications Simples W-WITF-USA-15A | 2018/05/27 14:00 | Companion, Kaheaokaleonahenahemaikalani v Ryngler, Alexa | 0-6,1-6 |
| ITF Women Incheon Qual | 2018/05/14 03:30 | Ryngler, Alexa v Dabin Kim | 3-6,3-6 |
| ITF Women Incheon Qual | 2018/05/13 03:30 | Ryngler, Alexa v Lee, SE Jin | 7-5,5-7,6-2 |
| ITF Women Fort Worth Qual | 2018/07/29 18:00 | Pielet, Gianna v Doyle, Hadley | 7-5,6-2 |
| ITF Women Evansville | 2018/07/25 14:00 | Peyton Stearns v Pielet, Gianna | 6-4,6-1 |
| ITF Women Baton Rouge Qual | 2018/06/18 14:00 | Chen, Kelly v Pielet, Gianna | 6-3,6-4 |
| Sumter, Singles Qualifying W-WITF-USA-18A | 2018/06/12 13:00 | Maria Jose Portillo Ramirez v Pielet, Gianna | 6-2,6-3 |
| Sumter, Singles Qualifying W-WITF-USA-18A | 2018/06/11 13:00 | Pielet, Gianna v Victoria Hu | 7-6,6-0 |
| Sumter, Singles Qualifying W-WITF-USA-18A | 2018/06/10 13:00 | Johns, Charity v Pielet, Gianna | 0-6,1-6 |
| ITF Women Bethany Beach Qual | 2018/06/04 14:00 | Pielet, Gianna v Amy Zhu | 6-7,3-6 |
| Naples, Qualifications Simples W-WITF-USA-15A | 2018/05/27 14:00 | Pielet, Gianna v Lorbergs, Genevieve | 4-6,3-6 |