Stadium: Court 1 Round: 26
| ITF Women Rancho Santa Fe | 2018/02/22 01:30 | Yanina Wickmayer v Danielle Lao | 5-7,4-6 |
| ITF Women Surprise | 2018/02/13 22:25 | Danielle Lao v Olga Ianchuk | 6-4,6-7,6-7 |
| WTA Newport Beach Qual | 2018/01/21 20:00 | Amanda Anisimova v Danielle Lao | 6-1,6-0 |
| WTA Newport Beach Qual | 2018/01/20 18:00 | Karolina Muchova v Danielle Lao | 3-6,5-7 |
| WTA Brisbane Qual | 2017/12/29 04:20 | Heather Watson v Danielle Lao | 7-5,6-3 |
| WTA Honolulu | 2017/11/22 20:00 | Ajla Tomljanovic v Danielle Lao | 2-6,6-3,6-1 |
| WTA Honolulu | 2017/11/21 20:00 | Danielle Lao v Claire Liu | 6-4,6-4 |
| ITF Women Waco | 2017/11/10 17:00 | Sofia Kenin v Danielle Lao | 6-4,6-3 |
| ITF Women Rancho Santa Fe | 2018/02/21 20:30 | Elitsa Kostova v Ashley Lahey | 4-6,6-3,6-1 |
| ITF Women Surprise | 2018/02/15 20:45 | Julia Boserup v Elitsa Kostova | 7-5,3-6,6-1 |
| WTA Newport Beach | 2018/01/23 18:00 | Rebecca Peterson v Elitsa Kostova | 4-6,6-3,7-5 |
| WTA Newport Beach Qual | 2018/01/21 18:00 | Caroline Dolehide v Elitsa Kostova | 4-6,4-6 |
| WTA Newport Beach Qual | 2018/01/20 20:15 | Emina Bektas v Elitsa Kostova | 2-6,7-5,1-6 |
| Australian Open Women Qual | 2018/01/13 02:15 | Elitsa Kostova v Denisa Allertova | 6-7,2-6 |
| Australian Open Women Qual | 2018/01/10 23:00 | Asia Muhammad v Elitsa Kostova | 1-6,6-3,5-7 |
| WTA Auckland Qual | 2017/12/29 22:50 | Jana Fett v Elitsa Kostova | 6-2,6-1 |