Gauff edged No. 6 seed Martic in three, while Collins beat world No. 1 Barty, 6-3, 6-4.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2012 |
e-Boks Danish Open
Denmark, Copenhagen |
Quarter Finals | Petra Martic |
4-6
6-4 3-6 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Tianjin Open, Qualification
|
1/12 (Special Qual) | Sabine Lisicki |
6-2
6-1 |
| 2018 |
Tashkent Open
|
1/16 | Vera Lapko |
1-6
3-6 |
| 2018 |
US Open, Qualification WTA
|
1/32 | Anastasia Potapova |
6-7
3-6 |
| 2018 |
US Open, Qualification WTA
|
1/64 | Bojana Jovanovski |
6-4
6-4 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2021 |
Adelaide International
|
1/8 | Coco Gauff |
7-5
3-6 4-6 |
| 2021 |
Adelaide International
|
1/16 | Petra Martic |
4-6
6-0 7-5 |
| 2021 |
Phillip Island Trophy
|
Quarter Finals | Daria Kasatkina |
0-6
4-6 |
| 2021 |
Phillip Island Trophy
|
1/8 | Petra Martic |
6-1
6-3 |
| 2021 |
Phillip Island Trophy
|
1/16 | Petra Martic |
6-2
5-7 6-4 |
