01/By surface
each with its own count, at equal weight
Hard
1-0
G. leads 1-0 in 1 meeting on hard
Clay
1-0
G. leads 1-0 in 1 meeting on clay
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, G. first |
|---|---|---|---|---|---|---|
| Feb 20, 2018 | Open 13ATP250 | hard | 1st round | Simon G. | 7-6, 7-6 | 66 v 70 |
| Jul 24, 2017 | German Tennis ChampionshipsATP500 | clay | 1st round | Simon G. | 6-2, 4-6, 6-4 | 39 v 121 |
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 Marterer M. each carry the table against every opponent faced.