Head to Head
| 2017 Fed Cup | 2017/02/08 10:00 | Cagla Buyukakcay v Jelena Ostapenko | 6-7,7-5,3-6 |
Home History
| Australian Open Women Qual | 2018/01/11 05:40 | Cagla Buyukakcay v Julia Boserup | 4-6,4-6 |
| WTA Shenzhen Qual | 2017/12/31 04:45 | Cagla Buyukakcay v Stefanie Voegele | 1-6,2-6 |
| WTA Shenzhen Qual | 2017/12/30 05:10 | Barbora Krejcikova v Cagla Buyukakcay | 6-7,5-7 |
| ITF Women Dubai | 2017/12/11 10:30 | Stefanie Voegele v Cagla Buyukakcay | 6-4,6-0 |
| ITF Women Waco | 2017/11/09 19:00 | Cagla Buyukakcay v Anna Karolina Schmiedlova | 3-6,6-2,5-7 |
| ITF Women Waco | 2017/11/08 17:30 | Cagla Buyukakcay v Victoria Duval | 6-4,6-4 |
| ITF Women Tyler | 2017/11/03 20:50 | Sofia Kenin v Cagla Buyukakcay | 7-5,6-4 |
| ITF Women Tyler | 2017/11/02 16:00 | Cagla Buyukakcay v Sesil Karatantcheva | 6-2,6-2 |
Away History
| WTA St. Petersburg | 2018/02/02 13:15 | Petra Kvitova v Jelena Ostapenko | 6-0,6-2 |
| WTA St. Petersburg | 2018/01/31 14:10 | Vera Zvonareva v Jelena Ostapenko | 6-7,3-6 |
| Australian Open Women | 2018/01/19 10:15 | Jelena Ostapenko v Anett Kontaveit | 3-6,6-1,3-6 |
| Australian Open Women | 2018/01/17 05:45 | Jelena Ostapenko v Ying-Ying Duan | 6-3,3-6,6-4 |
| Australian Open Women | 2018/01/15 00:00 | Jelena Ostapenko v Francesca Schiavone | 6-1,6-4 |
| WTA Sydney | 2018/01/07 04:55 | Jelena Ostapenko v Ekaterina Makarova | 6-7,1-6 |
| WTA Shenzhen | 2018/01/02 05:45 | Kristyna Pliskova v Jelena Ostapenko | 6-1,6-4 |
| Mubadala WTC Women | 2017/12/30 13:00 | Serena Williams v Jelena Ostapenko | 2-6,6-3,0-0 |