01/By surface
each with its own count, at equal weight
Hard
Never on hard
no meeting on this surface
Clay
1-0
C. leads 1-0 in 1 meeting on clay
Grass
1-0
C. leads 1-0 in 1 meeting on grass
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, C. first |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | WimbledonGrand Slam | grass | 2nd round | Gauff C. | 6-3, 3-6, 7-6 | 7 v 56 |
| May 9, 2026 | Internazionali BNL d'ItaliaWTA1000 | clay | 3rd round | Gauff C. | 5-7, 6-0, 6-4 | 4 v 72 |
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. Gauff C. and Sierra S. each carry the table against every opponent faced.