01/By surface
each with its own count, at equal weight
Hard
0-1
G. leads 1-0 in 1 meeting on hard
Clay
3-0
P. leads 3-0 in 3 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, P. first |
|---|---|---|---|---|---|---|
| May 12, 2019 | Internazionali BNL d'ItaliaMasters 1000 | clay | 1st round | Kohlschreiber P. | 6-2, 3-6, 6-3 | 56 v 28 |
| Jul 27, 2017 | German Tennis ChampionshipsATP500 | clay | 2nd round | Kohlschreiber P. | 6-3, 3-6, 6-2 | 58 v 39 |
| Oct 4, 2016 | Rakuten Japan Open Tennis ChampionshipsATP500 | hard | 1st round | Simon G. | 7-5, 4-6, 6-0 | 31 v 30 |
| Jul 17, 2014 | bet-at-home OpenATP500 | clay | 3rd round | Kohlschreiber P. | 7-5, 6-3 | 26 v 38 |
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. Kohlschreiber P. and Simon G. each carry the table against every opponent faced.