| 08.02.23 | 1-a rundă | Andrew Harris/Christian Harrison | Constantin Frantzen/Tim Sandkaulen | 6-4, 6-2 |  | detaliu meci | Tenerife 3 | Hard |
| 02.02.23 | Sfert de finală | Jonathan Eysseric/Denys Molchanov | Constantin Frantzen/Tim Sandkaulen | 6-3, 0-6, 10-8 |  | detaliu meci | Koblenz Challenger | In. Hard |
| 01.02.23 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Liam Broady/Dustin Brown | 6-3, 2-6, 10-8 |  | detaliu meci |
| 06.08.22 | Finală | Benjamin Hassan/Tristan Lamasine | Constantin Frantzen/Tim Sandkaulen | 6-4, 6-3 |  | detaliu meci | M25 Wetzlar | Zgura |
| 04.08.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | Murkel Dellien/Federico Zeballos | 6-3, 6-3 |  | detaliu meci |
| 03.08.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Karlo Cubelic/David Pichler | 6-1, 6-4 |  | detaliu meci |
| 02.08.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Giorgio Ricca/Luigi Sorrentino | 7-610, 6-3 |  | detaliu meci |
| 16.07.22 | Finală | Constantin Frantzen/Tim Sandkaulen | Tom Gentzsch/Leopold Zima | 6-4, 6-2 |  | detaliu meci | M25+H Kassel | Zgura |
| 15.07.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | Illya Beloborodko/Vladimir Uzhylovsky | 6-2, 4-6, 10-3 |  | detaliu meci |
| 14.07.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Rudolf Molleker/Oscar Moraing | 6-1, 6-1 |  | detaliu meci |
| 12.07.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Jannik Opitz/Maik Steiner | 6-1, 6-2 |  | detaliu meci |
| 08.07.22 | Semifinală | Jannik Opitz/Maik Steiner | Constantin Frantzen/Tim Sandkaulen | 6-2, 7-63 |  | detaliu meci | M25 Marburg | Zgura |
| 07.07.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Yshai Oliel/Michael Vrbensky | 6-4, 6-4 |  | detaliu meci |
| 05.07.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Rishab Agarwal/Vasilios Caripi | 6-1, 6-2 |  | detaliu meci |
| 29.06.22 | 1-a rundă | Facundo Diaz Acosta/Santiago Rodriguez Taverna | Constantin Frantzen/Tim Sandkaulen | 4-6, 6-3, 10-8 |  | detaliu meci | Luedenscheid Challenger | Zgura |
| 25.06.22 | Finală | Anirudh Chandrasekar/Vijay S P Natarajan | Constantin Frantzen/Tim Sandkaulen | 7-65, 6-4 |  | detaliu meci | M25 Arlon | Zgura |
| 25.06.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | Buvaysar Gadamauri/Tristan Schoolkate | 6-3, 6-3 |  | detaliu meci |
| 23.06.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Francisco Llanes/Franco Roncadelli | 6-4, 6-4 |  | detaliu meci |
| 21.06.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Marcel Hornung/Marlon Vankan | 6-1, 6-3 |  | detaliu meci |
| 17.06.22 | Semifinală | Alex Knaff/Chris Rodesch | Constantin Frantzen/Tim Sandkaulen | 7-65, 7-64 |  | detaliu meci | M15 Duffel | Zgura |
| 16.06.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Natan D'Hulst/Noah Merre | 6-3, 6-2 |  | detaliu meci |
| 15.06.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Alexander Hoogmartens/Otakar Ungerman | 6-0, 6-1 |  | detaliu meci |
| 10.06.22 | Semifinală | Constantin Bittoun Kouzmine/Michael Vrbensky | Constantin Frantzen/Tim Sandkaulen | 6-3, 3-6, 10-7 |  | detaliu meci | M15 Sarajevo | Zgura |
| 09.06.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Din Karahodza/Aldin Setkic | 6-3, 6-3 |  | detaliu meci |
| 07.06.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Alen Moritz Hodzic/Frane Nincevic | 6-2, 6-4 |  | detaliu meci |
| 25.05.22 | 1-a rundă | Tomas Barrios Vera/Facundo Mena | Constantin Frantzen/Tim Sandkaulen | 6-2, 7-65 |  | detaliu meci | Troisdorf Challenger | Zgura |
| 21.05.22 | Finală | Constantin Frantzen/Tim Sandkaulen | Marek Gengel/David Poljak | 6-3, 4-6, 10-7 |  | detaliu meci | M25 Most | Zgura |
| 20.05.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | Antonin Bolardt/Martin Krumich | 7-5, 4-6, 10-3 |  | detaliu meci |
| 19.05.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Martin Damm/Maxmillian Damm | 7-5, 6-3 |  | detaliu meci |
| 17.05.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Matyas Cerny/Mark Havlicek | 6-3, 6-0 |  | detaliu meci |
| 11.05.22 | 1-a rundă | Andrej Martin/Tristan-Samuel Weissborn | Constantin Frantzen/Tim Sandkaulen | 7-5, 6-75, 10-6 |  | detaliu meci | Heilbronn Challenger | Zgura |
| 07.05.22 | Finală | Constantin Frantzen/Tim Sandkaulen | Miguel Fernando Pereira/Gabriel Roveri Sidney | 7-65, 6-4 |  | detaliu meci | M15 Meerbusch | Zgura |
| 06.05.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | John Echeverria/Jannik Opitz | 6-4, 6-3 |  | detaliu meci |
| 05.05.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Robin Bertrand/Miguel Gomes | 6-4, 6-4 |  | detaliu meci |
| 04.05.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Tuna Altuna/Frane Nincevic | 6-2, 6-2 |  | detaliu meci |
| 29.04.22 | Semifinală | Theo Arribage/Luca Sanchez | Constantin Frantzen/Tim Sandkaulen | 6-2, 3-6, 10-8 |  | detaliu meci | M25 Split | Zgura |
| 28.04.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Aldin Setkic/Khumoun Sultanov | 6-2, 3-6, 10-3 |  | detaliu meci |
| 26.04.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Viacheslav Bielinskyi/Matej Galik | 6-4, 6-1 |  | detaliu meci |
| 02.04.22 | Finală | Szymon Kielan/Michal Mikula | Constantin Frantzen/Tim Sandkaulen | 7-64, 6-72, 10-2 |  | detaliu meci | M15 Monastir | Hard |
| 01.04.22 | Semifinală | Constantin Frantzen/Tim Sandkaulen | Michal Novansky/Lukas Palovic | 6-2, 6-3 |  | detaliu meci |
| 31.03.22 | Sfert de finală | Constantin Frantzen/Tim Sandkaulen | Qun Gao/Hanyi Liu | 6-4, 6-3 |  | detaliu meci |
| 29.03.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Ren Nakamura/Yamato Sueoka | 6-1, 6-4 |  | detaliu meci |
| 24.03.22 | 1-a rundă | Wissam Abderrahman/Jarno Jans | Constantin Frantzen/Tim Sandkaulen | 3-6, 7-64, 10-8 |  | detaliu meci | M15 Monastir | Hard |
| 27.01.22 | 1-a rundă | Theo Arribage/Alexander Donski | Constantin Frantzen/Tim Sandkaulen | 6-2, 6-2 |  | detaliu meci | M25 Monastir | Hard |
| 20.01.22 | Sfert de finală | Harold Mayot/Valentin Royer | Constantin Frantzen/Tim Sandkaulen | 6-1, 6-74, 10-6 |  | detaliu meci | M25 Monastir | Hard |
| 18.01.22 | 1-a rundă | Constantin Frantzen/Tim Sandkaulen | Zi Hui Chen/Ki Lung Ng | 6-3, 6-1 |  | detaliu meci |