01/By surface
each with its own count, at equal weight
Hard
2-0
B. 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, B. first |
|---|---|---|---|---|---|---|
| Aug 16, 2026 | Western & Southern Financial Group MastersMasters 1000 | hard | 2nd round | Nakashima B. | 6-2, 7-5 | 22 v 96 |
| Jan 10, 2026 | Brisbane InternationalATP250 | hard | semifinal | Nakashima B. | 7-6, 6-4 | 33 v 58 |
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. Nakashima B. and Kovacevic A. each carry the table against every opponent faced.