Stadium: Estadio Millennium Round: 26 Ground: Clay
| Davis Cup | 2018/10/20 09:30 | Elias/Sousa v Klaasen/Roelofse | 6-4,6-7,6-2 |
| Davis Cup | 2018/09/15 07:30 | Molchanov/Stakhovsky v Elias/Sousa | 6-4,3-6,7-6 |
| Challenger Braga MD | 2018/05/11 15:55 | Elias/Sousa v Behar/Reyes-Varela | 5-7,7-6,4-10 |
| Challenger Braga MD | 2018/05/10 16:15 | Elias/Sousa v Lammons/Oliveira | 6-7,6-2,10-7 |
| Challenger Braga MD | 2018/05/07 14:50 | Cabral/Cacao v Elias/Sousa | 3-6,1-6 |
| ATP Estoril MD | 2018/05/03 13:45 | Koolhof/Sitak v Elias/Sousa | 7-6,4-6,10-8 |
| ATP Estoril MD | 2018/05/01 18:20 | Erlich/Lipsky v Elias/Sousa | 6-2,2-6,9-11 |
| Challenger Tunis MD | 2018/04/18 15:50 | Elias/Sousa v Novak/Weissborn | 3-6,2-6 |
| ATP Cincinnati MD | 2018/08/15 15:00 | Mclachlan/Middelkoop v Cabal/Farah | 5-7,3-6 |
| ATP Cincinnati MD | 2018/08/13 17:10 | Cecchinato/Dzumhur v Mclachlan/Middelkoop | 7-6,3-6,8-10 |
| ATP Toronto MD | 2018/08/09 19:00 | Mclachlan/Middelkoop v Rojer/Tecau | 3-6,6-3,5-10 |
| ATP Toronto MD | 2018/08/09 02:55 | Mclachlan/Middelkoop v Coric/Haase | 5-7,6-3,10-7 |