01/By surface
each with its own count, at equal weight
Hard
0-2
J.L. leads 2-0 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, M. first |
|---|---|---|---|---|---|---|
| Oct 15, 2025 | Almaty OpenATP250 | hard | 1st round | Struff J.L. | 2-6, 6-3, 6-4 | 99 v 98 |
| Aug 25, 2025 | US OpenGrand Slam, best of 5 | hard | 1st round | Struff J.L. | 3-6, 7-6, 6-3, 6-3 | 100 v 144 |
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. McDonald M. and Struff J.L. each carry the table against every opponent faced.