Stadium: Court 4 Round: 62 Ground: Clay
| Challenger Guadalajara | 2018/04/17 20:15 | Joao Souza v Gonzalo Escobar | 6-2,3-6,5-7 |
| Challenger Guadalajara Qual | 2018/04/16 17:00 | Alejandro Gonzalez v Joao Souza | 4-6,6-0,3-6 |
| Challenger Guadalajara Qual | 2018/04/15 17:40 | Lloyd Glasspool v Joao Souza | 6-3,6-7,6-7 |
| Challenger Guadalajara Qual | 2018/04/14 19:05 | Raul-Isaias Rosas-Zarur v Joao Souza | 2-6,0-6 |
| Challenger Mexico City | 2018/04/11 21:05 | Joao Souza v Adrian Menendez-Maceiras | 4-6,6-2,3-6 |
| Challenger Mexico City | 2018/04/10 17:00 | Joao Souza v Guilherme Clezar | 7-6,7-5 |
| Challenger San Luis Potosi | 2018/03/27 18:00 | Daniel Elahi Galan v Joao Souza | 6-7,7-6,7-5 |
| ATP Miami Qual | 2018/03/19 15:35 | Ruben Bemelmans v Joao Souza | 7-5,6-3 |
| ITF Italy F8 Qual | 2018/04/15 12:00 | Wilson Leite v Leon Hoeveler | 6-3,7-6 |
| ITF Italy F7 Qual | 2018/04/08 12:00 | Franco Capalbo v Leon Hoeveler | 6-0,6-2 |
| ITF France F6 Qual | 2018/03/18 10:00 | Alexis Boureau v Leon Hoeveler | 6-1,6-0 |
| ITF France F6 Qual | 2018/03/17 11:40 | Yanis Muesser v Leon Hoeveler | 2-6,1-6 |
| ITF Greece F3 | 2018/03/10 10:00 | Cristopher Kohl v Leon Hoeveler | 6-2,6-3 |
| ITF Greece F2 | 2018/03/03 07:30 | Luca Giacomini v Leon Hoeveler | 6-1,6-1 |
| ITF Italy F1 Qual | 2018/02/24 08:30 | Raul Brancaccio v Leon Hoeveler | 6-2,6-3 |
| ITF Switzerland F2 Qual | 2018/02/10 08:00 | Bastien Kolly v Leon Hoeveler | 6-4,6-1 |