Stadium: Court 3 Round: 26 Ground: Clay
| Challenger Caltanissetta | 2016/06/06 13:40 | Giraldo, Santiago v Lorenzo Giustino | 6-4,6-1 |
| Challenger Almaty | 2019/06/04 09:40 | Giraldo, Santiago v Tung-Lin Wu | 2-6,6-3,6-2 |
| French Open, Paris, France | 2019/05/23 14:30 | Rudolf Molleker v Giraldo, Santiago | 4-6,6-4,6-4 |
| French Open, Paris, France | 2019/05/20 12:45 | Nedovyesov, Aleksandr v Giraldo, Santiago | 6-3,4-6,3-6 |
| Challenger - Sarasota | 2019/04/17 15:35 | Laaksonen, Henri v Giraldo, Santiago | 6-4,6-4 |
| Challenger - Sarasota | 2019/04/16 15:40 | Giraldo, Santiago v Thai-Son Kwiatkowski | 5-7,6-1,6-4 |
| ATP - Houston | 2019/04/12 01:35 | Giraldo, Santiago v Jordan Thompson | 6-4,6-7,5-7 |
| ATP - Houston | 2019/04/09 20:55 | Giraldo, Santiago v Klahn, Bradley | 6-4,6-4 |
| ATP - Houston | 2019/04/07 15:00 | Christopher Eubanks v Giraldo, Santiago | 4-6,4-6 |
| Challenger Almaty | 2019/06/04 10:30 | Nino Serdarusic v Lorenzo Giustino | 6-3,3-6,2-6 |
| Challenger Vicenza | 2019/05/31 12:40 | Lorenzo Giustino v Benjamin Hassan | 1-6,3-6 |
| Challenger Vicenza | 2019/05/30 16:30 | Lorenzo Giustino v Escobar, Gonzalo | 6-7,6-2,7-5 |
| French Open, Paris, France | 2019/05/20 15:20 | Krstin, Pedja v Lorenzo Giustino | 6-4,6-2 |
| Lisbon, Portugal | 2019/05/17 12:00 | Ehrat, Sandro v Lorenzo Giustino | 5-7,6-3,2-6 |
| Lisbon, Portugal | 2019/05/16 09:00 | Lorenzo Giustino v Fratangelo, Bjorn | 6-4,2-6,6-2 |
| Lisbon, Portugal | 2019/05/15 09:00 | Lorenzo Giustino v Zdenek Kolar | 6-4,6-2 |
| Challenger - Aix en Provence | 2019/05/07 16:25 | Lorenzo Giustino v Troicki, Viktor | 6-4,2-6,4-6 |