Stadium: Court 13 Round: 25
| ITF Women Midland | 2018/02/01 15:00 | Brengle, Madison v Boserup, Julia | 6-2,6-2 |
| ITF Women Midland | 2018/01/31 17:50 | Boserup, Julia v Jovic, J. | 6-7,6-2,6-3 |
| Newport Beach, USA | 2018/01/23 19:45 | Gibbs, Nicole v Boserup, Julia | 6-4,4-6,6-0 |
| Australian Open Women Qual | 2018/01/12 09:20 | Anna Kalinskaya v Boserup, Julia | 6-1,6-4 |
| Australian Open Women Qual | 2018/01/11 05:40 | Cagla Buyukakcay v Boserup, Julia | 4-6,4-6 |
| Brisbane, Australia, Qualifying | 2017/12/29 04:25 | Aliaksandra Sasnovich v Boserup, Julia | 6-1,6-4 |
| WTA Honolulu | 2017/11/26 00:10 | Boserup, Julia v Su Jeong Jang | 3-6,6-3,3-6 |
| WTA Honolulu | 2017/11/25 01:25 | Boserup, Julia v Rodina, Evgeniya | 6-1,3-6,6-1 |
| Newport Beach, USA | 2018/01/23 18:00 | Rebecca Peterson v Kostova, Elitsa | 4-6,6-3,7-5 |
| WTA Newport Beach Qual | 2018/01/21 18:00 | Caroline Dolehide v Kostova, Elitsa | 4-6,4-6 |
| WTA Newport Beach Qual | 2018/01/20 20:15 | Emina Bektas v Kostova, Elitsa | 2-6,7-5,1-6 |
| Australian Open Women Qual | 2018/01/13 02:15 | Kostova, Elitsa v Satralova, Denisa | 6-7,2-6 |
| Australian Open Women Qual | 2018/01/10 23:00 | Muhammad, Asia v Kostova, Elitsa | 1-6,6-3,5-7 |
| Auckland, New Zealand, Qualifying | 2017/12/29 22:50 | Jana Fett v Kostova, Elitsa | 6-2,6-1 |
| ITF Women Norman | 2017/11/16 19:10 | Sanchez, Maria v Kostova, Elitsa | 6-4,6-4 |
| ITF Women Norman | 2017/11/15 19:40 | Sargeant, Amy v Kostova, Elitsa | 0-6,3-6 |