The American could be well out of the Top 100 by season's end.
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
Rolex Paris Masters
|
1/32 | Damir Dzumhur |
4-6
6-7 |
| 2018 |
Rolex Paris Masters, Qualification
|
1/6 (Special Qual) | Peter Gojowczyk |
3-6
4-6 |
| 2018 |
Rolex Paris Masters, Qualification
|
1/12 (Special Qual) | Peter Gojowczyk |
4-6
6-4 2-6 |
| 2018 |
Swiss Indoors Basel
|
1/8 | Stefanos Tsitsipas |
6-3
6-1 |
| 2018 |
Swiss Indoors Basel
|
1/16 | Peter Gojowczyk |
1-6
7-5 6-3 |
| year | Event | RND | Winner | Results |
|---|---|---|---|---|
| 2018 |
US Open WTA
|
1/16 | Serena Williams |
6-1
6-2 |
| 2018 |
US Open WTA
|
1/32 | Venus Williams |
4-6
5-7 |
| 2018 |
US Open WTA
|
1/64 | Venus Williams |
3-6
7-5 3-6 |
| 2018 |
Rogers Cup
|
1/8 | Simona Halep |
6-2
6-2 |
| 2018 |
Rogers Cup
|
1/16 | Venus Williams |
6-7
4-6 |
| 2018 |
Rogers Cup
|
1/32 | Venus Williams |
5-7
1-6 |
