01/By surface
each with its own count, at equal weight
Hard
1-0
G. leads 1-0 in 1 meeting on hard
Clay
Never on clay
no meeting on this surface
Grass
0-2
Potro J.M. leads 2-0 in 2 meetings on grass
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, G. first |
|---|---|---|---|---|---|---|
| Jul 10, 2018 | WimbledonGrand Slam, best of 5 | grass | 4th round | Del Potro J.M. | 7-6, 7-6, 5-7, 7-6 | 53 v 4 |
| Jun 10, 2016 | Mercedes CupATP250 | grass | quarterfinal | Del Potro J.M. | 6-7, 6-3, 6-0 | 18 v 223 |
| Feb 22, 2013 | Open 13ATP250 | hard | quarterfinal | Simon G. | 6-4, 6-3 | 13 v 7 |
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. Simon G. and Del Potro J.M. each carry the table against every opponent faced.