01/By surface
each with its own count, at equal weight
Hard
3-1
E. leads 3-1 in 4 meetings on hard
Clay
1-0
E. leads 1-0 in 1 meeting on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
5 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, E. first |
|---|---|---|---|---|---|---|
| Jan 23, 2020 | Australian OpenGrand Slam | hard | 2nd round | Mertens E. | 6-3, 6-0 | 17 v 75 |
| Jan 16, 2020 | Hobart InternationalInternational | hard | quarterfinal | Watson H. | 6-7, 6-4, 7-5 | 17 v 101 |
| May 31, 2018 | French OpenGrand Slam | clay | 2nd round | Mertens E. | 6-3, 6-4 | 16 v 80 |
| Jan 12, 2018 | Hobart InternationalInternational | hard | semifinal | Mertens E. | 6-4, 1-6, 6-2 | 36 v 74 |
| Oct 19, 2017 | BGL BNP Paribas Luxembourg OpenInternational | hard | quarterfinal | Mertens E. | 6-4, 6-4 | 38 v 81 |
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 Watson H. each carry the table against every opponent faced.