Round: 44 Ground: Clay
| ITF Morocco F2 | 2018/07/22 09:00 | Krivic, Ivan v Keist, Luca | 7-6,6-3 |
| ITF Morocco F2 | 2018/07/21 09:30 | Keist, Luca v Glebov, Viacheslav | 6-0,6-0 |
| ITF Morocco F1 | 2018/07/14 13:30 | Keist, Luca v Quentin Folliot | 3-6,1-6 |
| ITF Israel F11 | 2018/06/27 09:05 | Keist, Luca v Hank, Tigre | 2-6,1-6 |
| ITF Israel F11 | 2018/06/25 07:00 | Keist, Luca v Dudockin, Daniel | 7-5,6-0 |
| ITF Israel F10 | 2018/06/19 08:10 | Keist, Luca v Green, Cameron | 3-6,2-6 |
| ITF Israel F10 | 2018/06/18 06:30 | Amar, Ran v Keist, Luca | 1-6,2-6 |
| ITF Israel F10 | 2018/06/17 07:30 | Gabriel Roveri Sidney v Keist, Luca | 1-6,1-6 |
| ITF Austria F1 | 2018/06/30 11:00 | Hruncak, Dominik v Yannik Steinegger | 7-6,6-2 |
| ITF Switzerland F1 | 2018/02/08 13:40 | Yannik Steinegger v Reinwein, Sami | 4-6,3-6 |
| ITF Switzerland F1 | 2018/02/07 12:00 | Antoine Bellier v Yannik Steinegger | 4-6,4-6 |
| ITF Switzerland F1 Qual | 2018/02/05 12:25 | Kolly, Bastien v Yannik Steinegger | 6-7,0-6 |
| ITF Switzerland F1 Qual | 2018/02/04 11:30 | Yannik Steinegger v Ceppellini, Alessandro | 6-2,6-4 |
| ITF Switzerland F1 Qual | 2018/02/03 11:30 | Yannik Steinegger v Lanz, Timo | 7-6,6-3 |
| ITF Switzerland F5 | 2017/08/29 08:00 | Yannik Steinegger v Corentin Denolly | 1-6,3-6 |
| ITF Switzerland F4 Qual | 2017/08/20 08:35 | Schmid, Aaron v Yannik Steinegger | 2-6,6-2,7-5 |