Stadium: Ct 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Newport Beach Qual | 2018/01/20 18:00 | Cristian Garin v Sarkissian, Alexander | 7-6,6-4 |
| ITF USA F1 | 2018/01/05 18:00 | Sarkissian, Alexander v Christopher Eubanks | 7-6,5-7,3-6 |
| ITF USA F1 | 2018/01/04 18:00 | Sarkissian, Alexander v Redlicki, Martin | 6-1,6-3 |
| ITF USA F1 | 2018/01/02 19:50 | Sarkissian, Alexander v Aragone, JC | 3-6,7-5,6-1 |
| ITF USA F38 | 2017/11/24 15:00 | Bambridge, Luke v Sarkissian, Alexander | 7-6,6-2 |
| ITF USA F38 | 2017/11/23 15:00 | Callahan, Hunter v Sarkissian, Alexander | 2-6,5-7 |
| ITF USA F38 | 2017/11/21 20:45 | Woog, Jarryd v Sarkissian, Alexander | 3-6,4-6 |
| Challenger Champaign | 2017/11/14 17:30 | Sarkissian, Alexander v Taylor Fritz | 2-6,1-6 |
| Bangkok, Thaïlande | 2018/01/12 05:00 | Granollers, Marcel v Yusuke Takahashi | 6-4,6-1 |
| Bangkok, Thaïlande | 2018/01/11 03:00 | Emil Ruusuvuori v Yusuke Takahashi | 6-3,3-6,3-6 |
| Bangkok, Thaïlande | 2018/01/09 07:40 | Mukund Sasikumar v Yusuke Takahashi | 2-6,7-5,0-6 |
| Bangkok, Thaïlande | 2018/01/02 06:30 | Yusuke Takahashi v Nedovyesov, Aleksandr | 4-6,4-6 |
| Open d'Australie Playoff Wilcard Australienne | 2017/12/01 03:15 | Yusuke Takahashi v Hiroki Moriya | 6-3,3-6,5-7 |
| Open d'Australie Playoff Wilcard Australienne | 2017/11/29 03:20 | Yusuke Takahashi v Xia, Zihao | 6-1,6-1 |
| Challenger Hua Hin | 2017/11/22 05:25 | Matosevic, Marinko v Yusuke Takahashi | 7-6,6-4 |
| Challenger Toyota | 2017/11/14 02:20 | Yusuke Takahashi v Ebden, Matthew | 1-6,6-7 |