| ITF USA F13 Qual | 04/10 16:00 | 62 | Luetjen, Jonas v 겔하드트, 루카 | 6-3,6-3 | |
| ITF USA F12 Qual | 04/04 15:55 | 62 | Luetjen, Jonas v Furman, Spencer | 2-6,6-7 | |
| ITF Israel F5 | 03/18 10:00 | 27 | Luetjen, Jonas v 벨리어, 안토니 | 6-7,7-5,6-7 | |
| ITF Israel F5 | 03/17 09:00 | 26 | 퀸지, 지안루이지 v Luetjen, Jonas | 4-6,6-4,4-6 | |
| ITF Israel F5 | 03/15 09:30 | 25 | Silverman, Cameron v Luetjen, Jonas | 2-6,6-7 | |
| ITF Israel F4 | 03/12 08:30 | 29 | Luetjen, Jonas v Jankovits, Yannick | 6-7,1-6 | |
| ITF Israel F4 | 03/11 08:30 | 28 | Luetjen, Jonas v 발보사, 로메인 | 6-0,7-6 | |
| ITF Israel F4 | 03/10 10:25 | 27 | 마르코라, 로베르토 v Luetjen, Jonas | 4-6,2-6 | |
| ITF Israel F4 | 03/09 08:00 | 26 | Luetjen, Jonas v 차펠, 니크 | 6-7,6-3,7-5 | |
| ITF Israel F4 | 03/07 08:00 | 25 | 풀가르-가르시아, 제임 v Luetjen, Jonas | 6-2,5-7,5-7 | |
| ITF Israel F2 | 02/18 08:30 | 27 | 웬트라우브, 아밀 v Luetjen, Jonas | 6-1,6-7,6-4 | |
| ITF Israel F2 | 02/17 09:35 | 26 | Luetjen, Jonas v 헬러, 페터 | 7-6,6-2 | |
| ITF Israel F2 | 02/14 11:30 | 62 | 카타리나, 루카스 v Luetjen, Jonas | 4-6,2-6 | |
| ITF Israel F2 | 02/14 07:30 | 62 | 타말, 길라드 v Luetjen, Jonas | 3-6,1-6 | |
| ITF Israel F2 | 02/13 11:30 | 62 | 리스, 헌터 v Luetjen, Jonas | 7-6,3-6,2-6 | |
| ITF Israel F1 | 02/09 07:30 | 62 | Luetjen, Jonas v 올리엘, 야사이 | 6-7,6-4,3-6 | |
| ITF Israel F1 | 02/07 11:30 | 62 | Luetjen, Jonas v 타말, 길라드 | 6-2,6-1 | |
| ITF Germany F3 | 01/27 15:25 | 25 | Luetjen, Jonas v 마덴, 야니크 | 3-6,6-7 | |
| ITF Germany F3 Qual | 01/25 11:30 | 44 | 네터스칠, 마르빈 v Luetjen, Jonas | 4-6,4-6 | |
| ITF Germany F3 Qual | 01/24 11:00 | 44 | Luetjen, Jonas v 네그리투, 크리스토프 | 7-6,6-3 | |
| ITF Germany F3 Qual | 01/24 08:00 | 44 | Luetjen, Jonas v Bertsch, Jochen | 6-0,3-6,6-1 | |
| ITF Tunisia F32 | 11/19 08:30 | 26 | 크리에크스풀, 탈론 v Luetjen, Jonas | 6-4,6-2 | |
| ITF Tunisia F32 | 11/17 13:40 | 25 | 페르모셀, 자임 v Luetjen, Jonas | 5-7,3-6 | |
| ITF Germany F16 | 10/15 13:35 | 26 | Luetjen, Jonas v Schonenberg, Tom | 6-7,4-6 | |
| ITF Germany F16 | 10/13 12:00 | 25 | Sandkaulen, Tim v Luetjen, Jonas | 2-6,4-6 | |
| ITF Turkey F37 | 10/23 07:30 | - | 크리스틴, 페드자 v Luetjen, Jonas | 6-3,6-2 | |
| ITF Turkey F37 | 10/21 07:30 | - | Luetjen, Jonas v Kuerschner, Alexander | 6-4,6-2 | |
| ITF Turkey F36 | 10/15 10:00 | - | Luetjen, Jonas v 마덴, 야니크 | 2-6,4-6 | |
| ATP Stuttgart Qual | 07/05 13:50 | 45 | 일란, 마르셀 v Luetjen, Jonas | 6-2,6-4 |