Stadium: Estadio Puerto Vallarta Round: 26 Ground: Hardcourt outdoor
| Challenger - Puerto Vallarta | 2018/05/02 01:00 | Alexander Sarkissian v Gerardo L Villasenor | 2-6,6-3,6-4 |
| Challenger - Leon | 2018/04/27 20:55 | Roberto Quiroz v Alexander Sarkissian | 6-4,7-6 |
| Challenger - Leon | 2018/04/25 21:55 | Jose Hernandez-Fernandez v Alexander Sarkissian | 6-7,6-7 |
| Challenger Guadalajara | 2018/04/19 21:00 | Marcelo Arevalo v Alexander Sarkissian | 6-3,6-3 |
| Challenger Guadalajara | 2018/04/17 17:00 | Christopher Heyman v Alexander Sarkissian | 4-6,6-7 |
| Challenger - San Luis Potosi | 2018/03/28 19:40 | Roberto Cid Subervi v Alexander Sarkissian | 6-2,6-0 |
| ITF USA F8 | 2018/03/23 19:20 | Laurent Lokoli v Alexander Sarkissian | 6-3,6-1 |
| ITF USA F8 | 2018/03/20 22:20 | Trent Bryde v Alexander Sarkissian | 1-6,2-6 |
| Challenger - Puerto Vallarta | 2018/05/01 00:45 | Marcelo Sepulveda v Santiago Giraldo | 2-6,0-6 |
| Challenger - Mexico City | 2018/04/10 17:00 | Santiago Giraldo v Mats Moraing | 4-6,7-5,2-6 |
| Davis Cup | 2018/04/06 20:00 | Santiago Giraldo v Thiago Monteiro | 1-6,2-6 |
| Challenger Le Gosier | 2018/03/27 19:30 | Santiago Giraldo v Ante Pavic | 2-6,6-3,6-7 |
| ATP Miami Qual | 2018/03/19 19:10 | Santiago Giraldo v Elias Ymer | 6-7,4-6 |
| Davis Cup | 2017/09/17 15:00 | Santiago Giraldo v Marin Cilic | 3-6,4-6,4-6 |
| Davis Cup | 2017/09/15 17:10 | Santiago Giraldo v Franko Skugor | 6-4,4-6,5-7,6-4,6-2 |
| US Open | 2017/08/30 19:45 | Vincent Millot v Santiago Giraldo | 1-6,0-6,6-4,6-4,4-6 |