01/By surface
each with its own count, at equal weight
Hard
1-0
E. leads 1-0 in 1 meeting on hard
Clay
2-0
E. leads 2-0 in 2 meetings on clay
Grass
1-0
E. leads 1-0 in 1 meeting on grass
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, E. first |
|---|---|---|---|---|---|---|
| Apr 25, 2025 | Mutua Madrid OpenWTA1000 | clay | 2nd round | Mertens E. | 6-3, 6-3 | 26 v 51 |
| Jan 31, 2025 | Singapore OpenWTA250 | hard | quarterfinal | Mertens E. | 6-4, 6-2 | 32 v 55 |
| May 31, 2023 | French OpenGrand Slam | clay | 2nd round | Mertens E. | 6-3, 7-6 | 28 v 86 |
| Jun 27, 2022 | WimbledonGrand Slam | grass | 1st round | Mertens E.ret. | 1-6, 6-2, 4-2 | 31 v 17 |
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 Osorio M. each carry the table against every opponent faced.