| US Open | 09/01 22:10 | 23 | Marcel Granollers v Kamil Majchrzak | Cancelled | |
| Masters de Shanghái | 10/06 04:00 | 46 | [245] Vasek Pospisil v Marcel Granollers [109] | 7-5,7-6 | |
| Masters de Shanghái | 10/05 04:00 | 45 | [109] Marcel Granollers v Alexei Popyrin [94] | 6-4,6-4 | |
| ATP Tokio | 09/29 02:00 | 164 | [101] Marcel Granollers v Yasutaka Uchiyama [138] | 3-6,4-6 | |
| ATP Tokio | 09/28 02:00 | 64 | [76] Nicolas Jarry v Marcel Granollers [101] | 1-6,6-1,2-6 | |
| ATP Metz | 09/17 13:50 | 25 | [100] Marcel Granollers v Richard Gasquet [41] | 6-4,6-7,4-6 | |
| ATP Metz | 09/16 09:00 | 164 | [102] Marcel Granollers v Adrian Menendez-Maceiras [205] | 6-3,6-2 | |
| ATP Metz | 09/15 08:00 | 64 | [102] Marcel Granollers v Albano Olivetti [491] | 6-4,6-2 | |
| US Open | 08/27 15:00 | 23 | [49] Lorenzo Sonego v Marcel Granollers [91] | 6-3,6-4,6-4 | |
| ATP Montreal | 08/04 15:00 | 46 | [51] Daniel Evans v Marcel Granollers [103] | 6-3,6-3 | |
| ATP Montreal | 08/03 15:00 | 45 | [103] Marcel Granollers v Marius Copil [84] | 6-2,6-4 | |
| ATP Los Cabos | 08/01 03:15 | 26 | [9] Fabio Fognini v Marcel Granollers [103] | 4-6,6-3,6-4 | |
| ATP Los Cabos | 07/30 04:05 | 25 | [492] Lucas Gomez v Marcel Granollers [103] | 0-6,1-6 | |
| ATP Newport | 07/20 17:00 | 28 | [98] Marcel Granollers v Alexander Bublik [83] | 6-7,6-3,4-6 | |
| ATP Newport | 07/19 15:00 | 27 | [209] Mischa Zverev v Marcel Granollers [98] | 3-6,0-6 | |
| ATP Newport | 07/17 15:00 | 26 | [98] Marcel Granollers v Jordan Thompson [43] | 6-2,7-6 | |
| ATP Newport | 07/15 17:25 | 25 | [98] Marcel Granollers v Prajnesh Gunneswaran [89] | 6-2,6-2 | |
| Wimbledon | 07/03 14:50 | 24 | [105] Marcel Granollers v Ugo Humbert [66] | 4-6,6-7,5-7 | |
| Wimbledon | 07/01 16:15 | 23 | [46] Lorenzo Sonego v Marcel Granollers [105] | 6-7,4-6,4-6 | |
| Wimbledon | 06/27 10:00 | - | [105] Marcel Granollers v Attila Balazs [207] | 7-6,6-3,6-3 | |
| Wimbledon | 06/26 10:00 | 45 | [105] Marcel Granollers v Blaz Kavcic [232] | 6-3,6-3 | |
| Wimbledon | 06/24 14:30 | 44 | [105] Marcel Granollers v Pedja Krstin [229] | 6-2,6-4 | |
| Challenger de Ilkley | 06/21 13:10 | 27 | [110] Marcel Granollers v Go Soeda [169] | 5-7,4-6 | |
| Challenger de Ilkley | 06/20 12:45 | 26 | [110] Marcel Granollers v Gregoire Barrere [115] | 6-2,3-6,7-5 | |
| Challenger de Ilkley | 06/18 17:15 | 25 | [110] Marcel Granollers v Marcos Giron [161] | 6-4,6-3 | |
| Challenger de Nottingham | 06/13 12:00 | 25 | [105] Marcel Granollers v Tatsuma Ito [158] | 3-6,5-7 | |
| Challenger de Surbiton | 06/07 15:15 | 27 | [107] Marcel Granollers v Daniel Evans [80] | 4-6,2-6 | |
| Challenger de Surbiton | 06/06 12:55 | 26 | [84] Bernard Tomic v Marcel Granollers [107] | 6-7,3-6 | |
| Challenger de Surbiton | 06/05 10:20 | 25 | [174] Dominik Koepfer v Marcel Granollers [107] | 2-6,6-7 | |
| ATP Madrid | 05/04 10:35 | 45 | [52] Hubert Hurkacz v Marcel Granollers [110] | 6-0,6-2 |