| Turkey F20, Singles Qualifying | 2017/05/20 07:00 | Kirk, Owen v Krohn, Linus | 6-7,4-6 |
| ITF Turkey F19 Qual | 2017/05/14 09:30 | ダスティ H・ボイヤー v Krohn, Linus | 7-5,6-2 |
| ITF Turkey F19 Qual | 2017/05/13 11:00 | Krohn, Linus v ラエルソン・ロドリゲス | 7-5,6-4 |
| Turkey F16, Singles Qualifying | 2017/04/22 09:00 | マルセル・イルハン v Krohn, Linus | 6-4,6-2 |
| Turkey F15, Singles Qualifying | 2017/04/16 07:00 | Krohn, Linus v セバスティアン・プレヒテル | 0-6,4-6 |
| Turkey F15, Singles Qualifying | 2017/04/15 07:00 | マティアス・ハイム v Krohn, Linus | 2-6,3-6 |
| Turkey F14, Singles Qualifying | 2017/04/09 07:00 | Krohn, Linus v ダニエル モーラ | 3-6,1-6 |
| ITF Greece F8 | 2016/10/29 09:00 | ルカ・カステルヌオーヴォ v Krohn, Linus | 6-2,6-1 |
| Tunisia F6, Singles Qualifying | 2017/02/11 11:00 | Cutuli, Domenico v Koval, Oleg | 6-1,6-1 |
| Tunisia F3, Singles Qualifying | 2017/01/21 09:00 | ダグニーノ,パオロ v Koval, Oleg | 6-4,7-6 |
| Egypt F37, Singles | 2016/12/14 11:00 | Koval, Oleg v Sabry, Sherif | 1-6,0-6 |
| Egypt F36, Singles Qualifying | 2016/12/04 08:00 | Koval, Oleg v Morr, Jonathan | 2-6,2-6 |
| Egypt F35, Singles Qualifying | 2016/11/28 09:30 | Koval, Oleg v ラルゴ,ウーゴ | 4-6,2-6 |
| Egypt F34, Singles | 2016/11/22 14:00 | ザリチャンスキー,ダニール v Koval, Oleg | 6-1,6-1 |
| ITF Egypt F34 Qual | 2016/11/21 15:30 | Koval, Oleg v イバン・クチビッチ | 2-6,6-1,7-6 |
| ITF Egypt F33 | 2016/11/14 15:10 | Garzelli, Francesco v Koval, Oleg | 6-1,6-1 |