01/By surface
each with its own count, at equal weight
Hard
1-0
S. leads 1-0 in 1 meeting on hard
Clay
1-2
L. leads 2-1 in 3 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, S. first |
|---|---|---|---|---|---|---|
| Feb 3, 2021 | Gippsland TrophyWTA500 | hard | 3rd round | Halep S. | 6-2, 6-4 | 2 v 51 |
| May 17, 2017 | Internazionali BNL d'ItaliaPremier | clay | 2nd round | Halep S. | 6-4, 6-4 | 4 v 32 |
| Apr 29, 2017 | Porsche Tennis Grand PrixPremier | clay | semifinal | Siegemund L. | 6-4, 7-5 | 5 v 49 |
| Apr 21, 2016 | Porsche Tennis Grand PrixPremier | clay | 2nd round | Siegemund L. | 6-1, 6-2 | 6 v 71 |
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. Halep S. and Siegemund L. each carry the table against every opponent faced.