01/By surface
each with its own count, at equal weight
Hard
0-3
C. leads 3-0 in 3 meetings on hard
Clay
0-1
C. leads 1-0 in 1 meeting on clay
Grass
0-1
C. leads 1-0 in 1 meeting on grass
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, E. first |
|---|---|---|---|---|---|---|
| Feb 18, 2026 | Dubai Duty Free Tennis ChampionshipsWTA1000 | hard | 3rd round | Gauff C. | 2-6, 7-6, 6-3 | 22 v 4 |
| Mar 13, 2024 | BNP Paribas OpenWTA1000 | hard | 4th round | Gauff C. | 6-0, 6-2 | 28 v 3 |
| Sep 2, 2023 | US OpenGrand Slam | hard | 3rd round | Gauff C. | 3-6, 6-3, 6-0 | 32 v 6 |
| May 29, 2022 | French OpenGrand Slam | clay | 4th round | Gauff C. | 6-4, 6-0 | 32 v 23 |
| Jun 22, 2021 | Viking InternationalWTA500 | grass | 1st round | Gauff C. | 0-6, 7-6, 7-5 | 16 v 23 |
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. Mertens E. and Gauff C. each carry the table against every opponent faced.