Stadium: Pista 2 Round: 25 Ground: Clay
| Challenger Mestre | 2018/05/24 10:25 | Joao Monteiro v Mitchell Krueger | 6-7,3-6 |
| Challenger Mestre | 2018/05/23 14:35 | Joao Monteiro v Mario Vilella Martinez | 7-5,6-7,6-1 |
| Challenger - Lissabon | 2018/05/15 13:10 | Taro Daniel v Joao Monteiro | 7-6,7-6 |
| Challenger - Braga | 2018/05/07 12:20 | Joao Monteiro v Gleb Sakharov | 6-2,3-6,2-6 |
| ATP Estoril Qual | 2018/04/30 13:45 | Ricardo Ojeda Lara v Joao Monteiro | 6-3,2-6,6-3 |
| ATP Estoril Qual | 2018/04/29 12:35 | Joao Monteiro v Stephane Robert | 6-3,6-7,7-6 |
| ITF Portugal F8 | 2018/04/20 12:40 | Joao Monteiro v Tiago Cacao | 4-6,5-7 |
| ITF Portugal F8 | 2018/04/19 13:05 | Joao Monteiro v Niels Desein | 6-2,6-7,6-4 |
| ITF Sweden F3 | 2018/05/23 08:00 | Fabrizio Ornago v Fred Simonsson | 6-4,6-2 |
| ITF Sweden F3 | 2018/05/22 10:30 | Mike Urbanija v Fred Simonsson | 5-7,6-3,3-6 |
| ITF Sweden F2 | 2018/05/18 11:30 | Fred Simonsson v Alexander Ritschard | 6-7,0-6 |
| ITF Sweden F2 | 2018/05/17 10:00 | Fred Simonsson v George Botezan | 6-1,5-7,6-3 |
| ITF Sweden F2 | 2018/05/16 09:55 | Fred Simonsson v Mike Urbanija | 6-3,6-4 |
| ITF Sweden F1 | 2018/05/09 08:00 | Otto Virtanen v Fred Simonsson | 6-3,6-7,6-3 |
| ITF Sweden F1 | 2018/05/08 09:40 | Carl Gustafsson v Fred Simonsson | 2-6,3-6 |
| ITF Bahrain F1 | 2018/03/20 16:00 | Fred Simonsson v Robert Galloway | 7-6,4-6,4-6 |