| Challenger Traralgon | 01/03 01:15 | 24 | Philip Sekulic v Nicola Kuhn | 7-6,2-6,6-7 | |
| Challenger Campinas | 11/17 14:00 | 26 | [129] Tomas Martin Etcheverry v Nicola Kuhn [240] | 3-6,6-4,6-1 | |
| Challenger Campinas | 11/15 15:25 | 25 | [240] Nicola Kuhn v Daniel Elahi Galan [110] | 7-5,6-3 | |
| Challenger Ortisei | 11/08 13:50 | 25 | [239] Nicola Kuhn v Federico Gaio [151] | 3-6,6-7 | |
| Challenger Ismaning | 10/24 14:10 | 26 | [249] Nicola Kuhn v Otto Virtanen [367] | 2-6,6-2,1-6 | |
| Challenger Alicante | 10/11 14:15 | 25 | [257] Nicola Kuhn v Fernando Verdasco [137] | 4-6,3-6 | |
| Challenger Barcelona | 10/08 10:20 | 27 | [257] Nicola Kuhn v Alex Molcan [117] | 3-6,2-6 | |
| Challenger Barcelona | 10/06 11:55 | 26 | [136] Nikola Milojevic v Nicola Kuhn [257] | 5-7,2-6 | |
| Challenger Barcelona | 10/05 09:45 | 25 | [311] Pedja Krstin v Nicola Kuhn [257] | 4-6,4-6 | |
| Challenger Murcia | 10/01 09:00 | 27 | [267] Nicola Kuhn v Flavio Cobolli [257] | 5-7,1-6 | |
| Challenger Murcia | 09/29 11:35 | 26 | [189] Filip Horansky v Nicola Kuhn [267] | 4-6,6-3,4-6 | |
| Challenger Murcia | 09/28 09:00 | 25 | [267] Nicola Kuhn v Timofey Skatov [269] | 6-2,6-4 | |
| Challenger Szczecin | 09/18 11:00 | 28 | [288] Nicola Kuhn v Zdenek Kolar [185] | Retired | |
| Challenger Szczecin | 09/17 13:00 | 27 | [288] Nicola Kuhn v Marco Trungelliti [179] | 6-1,7-5 | |
| Challenger Szczecin | 09/16 17:00 | 26 | [288] Nicola Kuhn v Alex Rybakov [371] | 6-2,6-2 | |
| Challenger Szczecin | 09/14 15:25 | 25 | [47] Albert Ramos-Vinolas v Nicola Kuhn [288] | 6-1,4-6,4-6 | |
| Challenger Szczecin | 09/13 12:10 | 19 | [288] Nicola Kuhn v Matteo Martineau [348] | 6-4,6-1 | |
| Challenger Szczecin | 09/12 14:35 | 14 | [277] Nicola Kuhn v Nathaniel Lammons [89] | 6-3,6-4 | |
| Challenger Seville | 09/07 10:50 | 25 | [253] Gian Marco Moroni v Nicola Kuhn [277] | 7-6,6-1 | |
| Challenger Meerbusch | 08/12 08:00 | 26 | Nicola Kuhn v Marcelo T B Vera | Walkover | |
| Challenger Meerbusch | 08/10 08:30 | 25 | [274] Nicola Kuhn v Nick Hardt [364] | 6-4,6-3 | |
| Challenger Pozoblanco | 07/20 21:35 | 25 | [320] Igor Sijsling v Nicola Kuhn [250] | Retired | |
| ATP Hamburg | 07/12 10:30 | 25 | [250] Nicola Kuhn v Thiago Seyboth Wild [127] | 6-1,1-6,2-6 | |
| Challenger Braunschweig | 07/07 11:40 | 26 | [255] Nicola Kuhn v Henri Laaksonen [137] | 4-6,5-7 | |
| Challenger Braunschweig | 07/06 15:25 | 25 | [255] Nicola Kuhn v Mischa Zverev [280] | 6-2,7-6 | |
| Challenger Porto | 06/29 12:50 | 25 | [255] Nicola Kuhn v Emilio Gomez [169] | 5-7,2-6 | |
| ATP Mallorca | 06/21 17:10 | 25 | [253] Nicola Kuhn v Feliciano Lopez [64] | 1-6,6-7 | |
| ATP Mallorca | 06/20 11:30 | 19 | [93] Radu Albot v Nicola Kuhn [253] | 6-7,4-6 | |
| ATP Mallorca | 06/19 09:00 | 14 | [253] Nicola Kuhn v Pedro Martinez [106] | 6-2,6-2 | |
| ATP Halle | 06/12 10:15 | 14 | [249] Nicola Kuhn v Daniel Elahi Galan [107] | 6-7,6-4,6-7 |