[17] Elise Mertens 6-4,6-4 Katerina Siniakova [69] 2021-04-23 14:20
Stadium: Center Court Round: 27 Ground: Clay
Head to Head
| WTA Wuhan | 2019/09/23 08:55 | Katerina Siniakova v Elise Mertens | 4-6,0-6 |
| WTA Doha | 2019/02/12 14:15 | Elise Mertens v Katerina Siniakova | 6-4,6-2 |
| WTA Sydney | 2019/01/08 07:50 | Katerina Siniakova v Elise Mertens | 6-7,6-2,2-6 |
Home History
| WTA Istanbul | 2021/04/22 10:30 | Elise Mertens v Viktorija Golubic | 6-4,4-6,6-1 |
| WTA Istanbul | 2021/04/20 10:30 | Elise Mertens v Lara Arruabarrena | 6-2,6-0 |
| WTA Charleston | 2021/04/07 19:30 | Elise Mertens v Alize Cornet | 5-7,3-6 |
| WTA Miami | 2021/03/29 19:00 | Elise Mertens v Naomi Osaka | 3-6,3-6 |
| WTA Miami | 2021/03/28 17:10 | Elise Mertens v Anett Kontaveit | 6-2,0-6,6-2 |
| WTA Miami | 2021/03/26 15:00 | Elise Mertens v Katie Boulter | 6-4,6-1 |
| WTA Dubai | 2021/03/12 13:00 | Garbine Muguruza v Elise Mertens | 6-4,7-6 |
| WTA Dubai | 2021/03/11 11:20 | Elise Mertens v Jessica Pegula | 5-7,7-5,6-0 |
Away History
| WTA Istanbul | 2021/04/21 16:00 | Katerina Siniakova v Kristina Mladenovic | 6-4,3-6,6-4 |
| WTA Istanbul | 2021/04/19 09:00 | Katerina Siniakova v Cristina Bucsa | 7-6,3-6,6-3 |
| WTA Miami | 2021/03/24 15:00 | Katerina Siniakova v Ana Konjuh | 6-7,5-7 |
| WTA St. Petersburg | 2021/03/18 10:00 | Katerina Siniakova v Margarita Betova | 4-6,4-6 |
| WTA St. Petersburg | 2021/03/16 14:10 | Katerina Siniakova v Kirsten Flipkens | 6-1,6-2 |
| WTA Dubai | 2021/03/07 12:40 | Ons Jabeur v Katerina Siniakova | 6-2,6-3 |
| WTA Doha | 2021/02/28 11:30 | Lesia Tsurenko v Katerina Siniakova | 6-3,6-2 |
| WTA Doha | 2021/02/27 08:00 | Monica Niculescu v Katerina Siniakova | 2-6,6-4,0-6 |