Stadium: Court 1 Round: 25 Ground: Carpet indoor
| ATP - Indian Wells | 2021/10/08 21:20 | Cem Ilkel v Jenson Brooksby | 6-7,4-6 |
| ATP - Indian Wells | 2021/10/06 20:10 | Govind Nanda v Cem Ilkel | 1-6,6-2,4-6 |
| ATP - Indian Wells | 2021/10/05 19:50 | Maxime Janvier v Cem Ilkel | 2-6,7-6,6-7 |
| ATP - Sofia | 2021/09/26 09:00 | Andreas Seppi v Cem Ilkel | 7-6,6-2 |
| Challenger - Biel | 2021/09/22 12:45 | Cem Ilkel v Tobias Kamke | 4-6,6-7 |
| Challenger - Biel | 2021/09/21 11:25 | Cem Ilkel v Matteo Viola | 7-6,7-6 |
| Davis Cup | 2021/09/18 10:35 | Cem Ilkel v Ernests Gulbis | 6-4,6-1 |
| US Open | 2021/08/30 20:35 | Alex Molcan v Cem Ilkel | 4-6,6-3,6-1,6-1 |
| Challenger - Ismaning | 2021/10/25 11:25 | Mischa Zverev v Julian Lenz | 5-7,6-7 |
| Challenger - Ismaning | 2021/10/24 12:40 | Julian Lenz v Geoffrey Blancaneaux | 6-4,7-5 |
| Challenger - Santiago | 2021/10/11 14:00 | Juan Manuel Cerundolo v Julian Lenz | 6-3,6-3 |
| Challenger - Santiago | 2021/10/07 14:00 | Julian Lenz v Juan Pablo Varillas | 2-6,4-6 |
| Challenger - Santiago | 2021/10/05 16:25 | Victor Nunez v Julian Lenz | 0-6,2-6 |
| Challenger - Lima | 2021/09/30 15:00 | Camilo Ugo Carabelli v Julian Lenz | 7-5,6-3 |
| Challenger - Lima | 2021/09/28 15:00 | Julian Lenz v Conner Huertas Del Pino | 6-3,6-3 |
| Challenger - Ambato | 2021/09/23 15:00 | Gerald Melzer v Julian Lenz | 6-3,7-5 |