Stadium: Estadio Round: 28 Ground: Hardcourt outdoor
| ATP Halle | 2015/06/16 10:00 | Giraldo, Santiago v Karlovic, Ivo | 7-6,4-6,4-6 |
| Monterrey, Mexico | 2018/10/05 22:40 | Karlovic, Ivo v Fratangelo, Bjorn | 6-4,6-3 |
| Monterrey, Mexico | 2018/10/04 00:35 | Karlovic, Ivo v Gomez, Lucas | 3-6,6-3,7-6 |
| Monterrey, Mexico | 2018/10/02 00:15 | Karlovic, Ivo v de Bakker, Thiemo | 7-6,7-5 |
| US Open, New York, USA | 2018/08/23 21:30 | Collin Altamirano v Karlovic, Ivo | 7-5,6-4 |
| US Open, New York, USA | 2018/08/22 21:35 | Illya Marchenko v Karlovic, Ivo | 3-6,6-7 |
| ATP Cincinnati Qual | 2018/08/12 18:40 | Hubert Hurkacz v Karlovic, Ivo | 7-6,7-6 |
| ATP Cincinnati Qual | 2018/08/11 23:00 | Karlovic, Ivo v Taro Daniel | 7-6,6-3 |
| ATP - Los Cabos | 2018/07/31 04:15 | Karlovic, Ivo v Elias Ymer | 4-6,3-6 |
| Monterrey, Mexico | 2018/10/05 20:00 | Gerald Melzer v Giraldo, Santiago | 7-6,5-7,3-6 |
| Monterrey, Mexico | 2018/10/03 22:20 | Giraldo, Santiago v Escobar, Gonzalo | 4-6,6-2,6-4 |
| Monterrey, Mexico | 2018/10/02 18:00 | Krainik, Pavel v Giraldo, Santiago | 4-6,4-6 |
| Coupe Davis | 2018/09/14 14:00 | Diego Schwartzman v Giraldo, Santiago | 6-3,6-1,6-7,6-1 |
| US Open, New York, USA | 2018/08/23 15:00 | Polansky, Peter v Giraldo, Santiago | 7-6,6-4 |
| US Open, New York, USA | 2018/08/21 21:45 | Giraldo, Santiago v Galovic, Viktor | 6-4,6-4 |
| Vancouver, Canada | 2018/08/14 01:40 | Polansky, Peter v Giraldo, Santiago | 7-6,5-7,6-3 |
| ATP Gstaad Qual | 2018/07/21 10:50 | Menendez-Maceiras, Adrian v Giraldo, Santiago | 6-3,7-5 |