Stadium: Estadio Central Round: 26 Ground: Clay
| ATP Rome Qual | 2017/05/13 11:00 | Carlos Berlocq v Santiago Giraldo | 6-2,6-1 |
| Challenger Santo Domingo | 2018/10/10 02:20 | Pablo Cuevas v Santiago Giraldo | 6-7,6-2,3-6 |
| Challenger Monterrey | 2018/10/06 19:00 | Ivo Karlovic v Santiago Giraldo | 6-7,6-4,7-6 |
| Challenger Monterrey | 2018/10/05 20:00 | Gerald Melzer v Santiago Giraldo | 7-6,5-7,3-6 |
| Challenger Monterrey | 2018/10/03 22:20 | Santiago Giraldo v Gonzalo Escobar | 4-6,6-2,6-4 |
| Challenger Monterrey | 2018/10/02 18:00 | Pavel Krainik v Santiago Giraldo | 4-6,4-6 |
| Davis Cup | 2018/09/14 14:00 | Diego Schwartzman v Santiago Giraldo | 6-3,6-1,6-7,6-1 |
| US Open | 2018/08/23 15:00 | Peter Polansky v Santiago Giraldo | 7-6,6-4 |
| US Open | 2018/08/21 21:45 | Santiago Giraldo v Viktor Galovic | 6-4,6-4 |
| Challenger Santo Domingo | 2018/10/09 18:30 | Carlos Berlocq v Alejandro Gomez | 6-4,6-3 |
| Challenger Campinas | 2018/10/05 20:35 | Carlos Berlocq v Federico Delbonis | 2-6,0-6 |
| Challenger Campinas | 2018/10/04 18:50 | Carlos Berlocq v Felipe Meligeni Rodrigues Alves | 6-3,7-6 |
| Challenger Campinas | 2018/10/02 13:00 | Carlos Berlocq v Facundo Mena | 6-3,6-1 |
| Challenger Banja Luka | 2018/09/16 11:00 | Alessandro Giannessi v Carlos Berlocq | 6-7,6-4,6-4 |
| Challenger Banja Luka | 2018/09/15 12:25 | Johan Sebastien Tatlot v Carlos Berlocq | 2-6,4-6 |
| Challenger Banja Luka | 2018/09/14 11:00 | Carlos Berlocq v Pablo Andujar | 3-6,6-4,6-1 |
| Challenger Banja Luka | 2018/09/12 10:30 | Carlos Berlocq v Oriol Roca Batalla | 6-4,6-4 |