| US Open | 08/27 17:25 | 23 | [14] John Isner v Guillermo Garcia-Lopez [165] | 6-3,6-4,6-4 | |
| US Open | 08/23 20:25 | 46 | [201] Constant Lestienne v Guillermo Garcia-Lopez [166] | 4-6,4-6 | |
| US Open | 08/22 17:10 | 45 | [195] Noah Rubin v Guillermo Garcia-Lopez [166] | 1-6,6-7 | |
| US Open | 08/20 15:00 | 44 | [166] Guillermo Garcia-Lopez v Lorenzo Giustino [128] | 3-6,7-5,6-2 | |
| Challenger Augsburg | 08/09 10:00 | 27 | [313] Julian Lenz v Guillermo Garcia-Lopez [161] | 7-6,3-6,7-5 | |
| Challenger Augsburg | 08/08 10:15 | 26 | [347] Carlos Taberner v Guillermo Garcia-Lopez [161] | 3-6,7-5,2-6 | |
| Challenger Augsburg | 08/06 10:35 | 25 | [278] Renzo Olivo v Guillermo Garcia-Lopez [161] | 6-7,4-6 | |
| ATP Kitzbuhel | 07/30 09:00 | 25 | [326] Jozef Kovalik v Guillermo Garcia-Lopez [158] | 6-7,6-2,6-3 | |
| ATP Kitzbuhel | 07/28 10:15 | 164 | [163] Guillermo Garcia-Lopez v Elliot Benchetrit [220] | 6-4,7-6 | |
| ATP Kitzbuhel | 07/27 11:15 | 64 | [163] Guillermo Garcia-Lopez v Igor Zelenay [65] | 6-3,6-4 | |
| ATP Gstaad | 07/21 11:05 | 164 | [151] Filippo Baldi v Guillermo Garcia Lopez [162] | 4-6,7-6,6-2 | |
| ATP Gstaad | 07/20 13:00 | 64 | [313] Gonzalo Escobar v Guillermo Garcia Lopez [162] | 1-6,2-6 | |
| Challenger Perugia | 07/14 19:00 | 29 | [75] Federico Delbonis v Guillermo Garcia-Lopez [164] | 6-0,1-6,7-6 | |
| Challenger Perugia | 07/13 19:15 | 28 | [99] Albert Ramos-Vinolas v Guillermo Garcia-Lopez [164] | 6-4,6-7,2-6 | |
| Challenger Perugia | 07/12 11:00 | 27 | [164] Guillermo Garcia-Lopez v Gianluigi Quinzi [262] | 6-3,1-6,7-6 | |
| Challenger Perugia | 07/11 10:30 | 26 | [107] Pedro Sousa v Guillermo Garcia-Lopez [164] | 6-7,2-6 | |
| Challenger Perugia | 07/09 17:00 | 25 | Aldin Setkic v Guillermo Garcia-Lopez | Walkover | |
| Wimbledon | 06/26 10:00 | 45 | [152] Guillermo Garcia-Lopez v Lukas Rosol [130] | 5-7,6-3,6-8 | |
| Wimbledon | 06/24 10:00 | 44 | [152] Guillermo Garcia-Lopez v Saketh Myneni [249] | 6-4,4-6,7-5 | |
| Challenger Ilkley | 06/17 13:00 | 24 | [154] Guillermo Garcia-Lopez v Yuichi Sugita [205] | 1-6,6-7 | |
| Challenger Prostejov | 06/05 11:00 | 26 | [136] Guillermo Garcia-Lopez v Marcelo Arevalo [307] | 3-6,6-4,1-6 | |
| Challenger Prostejov | 06/03 10:05 | 25 | Guillermo Garcia-Lopez v Karim-Mohamed Maamoun | 6-4,6-2 | |
| French Open | 05/28 09:00 | 23 | [136] Guillermo Garcia-Lopez v Federico Delbonis [75] | 1-6,6-3,3-6,2-6 | |
| French Open | 05/23 13:15 | 46 | [123] Guillermo Garcia-Lopez v Oscar Otte [145] | 3-6,6-4,6-0 | |
| French Open | 05/22 11:50 | 45 | [123] Guillermo Garcia-Lopez v Pedja Krstin [209] | 4-6,6-3,6-4 | |
| French Open | 05/20 12:10 | 44 | [123] Guillermo Garcia-Lopez v Tim Smyczek [228] | 6-1,6-4 | |
| Challenger Heilbronn | 05/16 09:30 | 26 | [122] Guillermo Garcia-Lopez v Viktor Troicki [259] | 4-6,4-6 | |
| Challenger Heilbronn | 05/15 11:35 | 25 | Guillermo Garcia-Lopez v Daniel Altmaier | 6-3,6-3 | |
| Challenger Aix en Provence | 05/08 10:30 | 25 | [123] Guillermo Garcia-Lopez v Enzo Couacaud [238] | 6-7,4-6 | |
| ATP Barcelona | 04/21 10:15 | 64 | [74] Federico Delbonis v Guillermo Garcia-Lopez [117] | 6-3,6-0 |