Stadium: Center Court Round: 27 Ground: Hardcourt outdoor
| Wimbledon Qual | 2018/06/26 17:00 | Marcel Granollers v John-Patrick Smith | 3-6,4-6 |
| Challenger Tiburon | 2018/09/26 18:00 | Marcel Granollers v Cem Ilkel | 6-2,7-5 |
| Challenger Tiburon | 2018/09/24 19:25 | Marcel Granollers v Evan King | 6-2,7-5 |
| Davis Cup | 2018/09/16 12:55 | Nicolas Mahut v Marcel Granollers | 7-6,3-6,11-13 |
| US Open | 2018/08/28 15:00 | Joao Sousa v Marcel Granollers | 6-2,6-2,6-3 |
| US Open | 2018/08/24 19:35 | Marcel Granollers v Nikola Milojevic | 6-0,7-6 |
| US Open | 2018/08/23 21:40 | Marcel Granollers v Kamil Majchrzak | 6-3,6-3 |
| US Open | 2018/08/22 21:25 | Marcel Granollers v Filip Peliwo | 7-6,6-2 |
| Challenger Gwangju | 2018/08/14 09:10 | Marcel Granollers v Alexei Popyrin | 4-6,3-6 |
| Challenger Tiburon | 2018/09/26 18:00 | John-Patrick Smith v Bjorn Fratangelo | 1-6,6-4,6-2 |
| Challenger Tiburon | 2018/09/25 17:00 | John-Patrick Smith v Pedro Martinez | 6-4,6-2 |
| Challenger Columbus | 2018/09/18 14:00 | John-Patrick Smith v Roberto Quiroz | 6-3,6-7,6-7 |
| Challenger Chicago | 2018/09/06 17:30 | Donald Young v John-Patrick Smith | 6-3,6-4 |
| Challenger Chicago | 2018/09/04 15:00 | John-Patrick Smith v Roberto Cid Subervi | 2-6,6-1,6-4 |
| US Open | 2018/08/21 19:10 | Hubert Hurkacz v John-Patrick Smith | 6-3,6-2 |
| ATP Atlanta Qual | 2018/07/21 16:20 | Denis Kudla v John-Patrick Smith | 3-6,7-6,6-3 |
| ATP Newport Qual | 2018/07/16 17:15 | John-Patrick Smith v Victor Estrella Burgos | 6-3,5-7,5-7 |