| ATP - Gijon | 10/11 12:00 | 25 | [62] Marcos Giron v Albert Ramos-Vinolas [40] | 4-6,6-4,6-2 | |
| ATP - Seoul | 09/27 01:00 | 25 | Nicolas Jarry v Marcos Giron | Cancelled | |
| ATP San Diego | 09/26 00:00 | 29 | [58] Marcos Giron v Brandon Nakashima [69] | 4-6,4-6 | |
| ATP San Diego | 09/24 21:00 | 28 | [25] Daniel Evans v Marcos Giron [58] | 3-6,5-7 | |
| ATP San Diego | 09/23 18:30 | 27 | [58] Marcos Giron v James Duckworth [83] | 7-6,6-3 | |
| ATP San Diego | 09/22 01:55 | 26 | [58] Marcos Giron v Tomas Martin Etcheverry [89] | 6-4,6-3 | |
| US Open | 08/30 22:00 | 23 | [56] Marcos Giron v Frances Tiafoe [26] | 6-7,4-6,3-6 | |
| ATP - Cincinnati | 08/17 20:05 | 25 | [19] Roberto Bautista-Agut v Marcos Giron [54] | 6-3,6-3 | |
| ATP - Cincinnati | 08/15 20:45 | 24 | [54] Marcos Giron v David Goffin [62] | 6-3,6-4 | |
| ATP - Cincinnati | 08/14 19:35 | 19 | [57] Marcos Giron v Fabio Fognini [60] | 7-6,7-5 | |
| ATP - Cincinnati | 08/13 17:00 | 14 | [57] Marcos Giron v Denis Kudla [96] | 6-3,6-2 | |
| ATP - Montreal | 08/08 23:00 | 24 | [57] Marcos Giron v Roberto Bautista-Agut [18] | 6-7,3-6 | |
| ATP - Montreal | 08/07 17:35 | 19 | [53] Marcos Giron v Alexei Popyrin [83] | 6-4,6-7,6-1 | |
| ATP - Montreal | 08/06 18:20 | 14 | [53] Marcos Giron v Jason Kubler [122] | 7-6,6-3 | |
| ATP - Washington | 08/02 23:00 | 24 | [63] Nick Kyrgios v Marcos Giron [53] | 6-3,6-2 | |
| ATP - Atlanta | 07/25 15:00 | 25 | [76] Soonwoo Kwon v Marcos Giron [55] | 7-6,4-6,7-5 | |
| Wimbledon | 06/30 10:00 | 24 | [65] Marcos Giron v Alex Molcan [51] | 3-6,2-6,4-6 | |
| Wimbledon | 06/28 13:30 | 23 | [29] Holger N Rune v Marcos Giron [65] | 3-6,5-7,4-6 | |
| ATP - Mallorca | 06/23 12:35 | 27 | [67] Marcos Giron v Stefanos Tsitsipas [6] | 6-7,6-4,3-6 | |
| ATP - Mallorca | 06/22 11:00 | 26 | [67] Marcos Giron v Mackenzie McDonald [52] | 4-6,7-6,6-4 | |
| ATP - Mallorca | 06/21 11:00 | 25 | [26] Botic Van De Zandschulp v Marcos Giron [67] | 7-6,4-6,6-7 | |
| ATP - Halle | 06/14 10:00 | 25 | [60] Marcos Giron v Felix Auger Aliassime [9] | 3-6,7-5,3-6 | |
| ATP - Stuttgart | 06/06 12:15 | 25 | [53] Marcos Giron v Jan-Lennard Struff [103] | 5-7,7-5,6-7 | |
| French Open | 05/22 09:00 | 23 | [20] Grigor Dimitrov v Marcos Giron [49] | 6-1,6-1,6-1 | |
| ATP - Geneva | 05/16 10:00 | 25 | [50] Ilya Ivashka v Marcos Giron [49] | 4-6,6-3,6-2 | |
| ATP - Rome | 05/12 12:20 | 26 | [60] Marcos Giron v Felix Auger Aliassime [9] | 3-6,2-6 | |
| ATP - Rome | 05/11 13:35 | 25 | [15] Diego Schwartzman v Marcos Giron [60] | 1-6,6-7 | |
| ATP - Rome | 05/09 14:25 | 24 | [41] Alexander Bublik v Marcos Giron [59] | 6-3,4-6,3-6 | |
| ATP - Rome | 05/08 09:00 | 19 | [52] Marcos Giron v Tallon Griekspoor [57] | 6-7,2-6 | |
| ATP - Rome | 05/07 08:00 | 14 | Marcos Giron v Gianmarco Ferrari | 6-7,6-3,6-2 |
Wikipedia - Marcos Giron
Marcos Giron (Thousand Oaks, 24 juli 1993) is een Amerikaanse tennisspeler. Hij heeft nog geen ATP-toernooi gewonnen. Wel deed hij al mee aan een grandslamtoernooi. Hij heeft geen challengers op zijn naam staan.