| ITF Germany F5 | 06/24 08:00 | 62 | Christ, Constantin v Miles, Lewis | 4-6,7-6,2-6 | |
| ITF Belgium F1 Qual | 06/18 11:10 | 44 | デ・ラ・バセティア,コンスタント v Christ, Constantin | 6-0,6-4 | |
| ITF Belgium F1 Qual | 06/17 08:00 | 44 | Christ, Constantin v Damiens, Antoine | 4-6,6-4,6-1 | |
| ITF Hungary F4 Qual | 06/10 11:00 | 62 | Christ, Constantin v ゴラズド・スルブリャク | 1-6,3-6 | |
| ITF Czech Republic F2 Qual | 05/20 08:00 | 44 | イヴォ・パナク v Christ, Constantin | 6-3,6-3 | |
| ITF Czech Republic F1 | 05/13 09:00 | 44 | スプーラク・プク,アルベルト v Christ, Constantin | 6-2,6-2 | |
| ITF Hungary F1 | 05/08 10:45 | 25 | Raspudic, Franjo v Christ, Constantin | 6-2,6-1 | |
| ITF Hungary F1 Qual | 05/07 08:00 | 62 | マルセル・バルタコビッチ v Christ, Constantin | 2-6,6-4,1-6 | |
| ITF Hungary F1 Qual | 05/06 08:00 | 62 | ダヴッド アミロフ v Christ, Constantin | 5-7,0-6 | |
| ITF Poland F1 | 04/28 07:00 | 62 | Christ, Constantin v Dettinger, Moritz | 0-6,2-6 | |
| ITF Italy F5 Qual | 03/27 13:00 | 44 | マチェイ・スモラ v Christ, Constantin | 6-1,6-1 | |
| ITF Italy F5 Qual | 03/27 09:00 | 44 | Christ, Constantin v ダニエル ダニエル・ミハルスキ | 0-6,6-4,6-4 | |
| ITF Italy F5 Qual | 03/24 10:30 | 44 | Ricci, Alessandro v Christ, Constantin | 6-7,2-6 | |
| ITF Croatia F3 | 03/20 09:00 | 60 | ウルバニージャ,マイク v Christ, Constantin | 6-0,6-2 | |
| ITF Croatia F3 | 03/19 12:30 | 60 | Christ, Constantin v ドゥサン ラジッチ | 7-6,0-6,7-5 | |
| ITF Croatia F3 | 03/18 16:00 | 60 | Christ, Constantin v キサンタル・ドミニク | 6-2,6-4 | |
| ITF Qatar F3 Qual | 03/11 17:15 | 44 | 王 康傑(ウォン・ホング・キット) v Christ, Constantin | 6-3,6-4 | |
| ITF Qatar F3 Qual | 03/10 08:00 | 44 | Nawaf, Hamad v Christ, Constantin | 2-6,1-6 | |
| ITF Qatar F2 Qual | 03/04 12:00 | 44 | Christ, Constantin v ショーン・ホドキン | 2-6,1-6 | |
| ITF Qatar F2 Qual | 03/03 08:00 | 44 | Christ, Constantin v Nawaf, Hamad | Retired | |
| ITF Qatar F1 Qual | 02/25 12:00 | 44 | ジョージ・ボテザン v Christ, Constantin | 6-4,6-3 | |
| ITF Qatar F1 Qual | 02/24 08:00 | 44 | モハメド・アドナウイ v Christ, Constantin | 1-6,6-4,3-6 | |
| ITF Switzerland F1 Qual | 02/04 11:30 | 44 | Christ, Constantin v アイチョーン,ヤコブ | 6-7,0-6 | |
| ITF Switzerland F1 Qual | 02/03 11:30 | 44 | Christ, Constantin v エドアルド グラツィアーニ | 7-5,6-7,6-3 | |
| ITF France F3 Qual | 01/20 11:30 | 54 | Christ, Constantin v アントワーヌ コルニュ＝ショバン | Retired | |
| ITF Germany F10 | 08/06 08:00 | 62 | ハイン,ヤン・ソーレン v Christ, Constantin | 6-2,6-0 | |
| ITF Germany F9 | 07/30 10:30 | 62 | Monteban, Paul v Christ, Constantin | 6-0,6-1 | |
| ITF Germany F1 Qual | 01/06 09:00 | - | ヒルシュメラー,クリスティアン v Christ, Constantin | 7-5,6-1 | |
| ITF Germany F1 Qual | 01/05 09:00 | - | Seyler, Nathaniel v Christ, Constantin | 6-4,4-6,3-6 | |
| ITF Germany F15 | 10/05 08:00 | - | Czepielewski, Daniel v Christ, Constantin | 6-4,6-1 |