01/By surface
each with its own count, at equal weight
Hard
Never on hard
no meeting on this surface
Clay
4-0
I. leads 4-0 in 4 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, I. first |
|---|---|---|---|---|---|---|
| May 23, 2016 | French OpenGrand Slam | clay | 1st round | Begu I. | 5-7, 6-1, 6-3 | 28 v 86 |
| Apr 6, 2016 | Family Circle CupPremier | clay | 2nd round | Begu I. | 6-4, 4-6, 6-2 | 34 v 89 |
| May 25, 2015 | French OpenGrand Slam | clay | 1st round | Begu I. | 6-4, 7-6 | 30 v 164 |
| Feb 18, 2015 | Rio OpenInternational | clay | 2nd round | Begu I. | 6-2, 6-4 | 34 v 214 |
A record, never a share of meetings. Main-draw singles since 2013; a meeting ended by retirement is counted with the sets that were played and marked; a walkover is listed and counted in neither column. Begu I. and Mattek-Sands B. each carry the table against every opponent faced.