| ATP - Madrid | 04/29 13:40 | 24 | [31] Sebastian Baez v Marcos Giron [61] | 3-6,6-3,6-4 | |
| ATP - Madrid | 04/27 13:10 | 23 | [74] Nuno Borges v Marcos Giron [61] | 2-6,6-7 | |
| ATP - München | 04/21 15:05 | 27 | [68] Marcos Giron v Botic Van De Zandschulp [29] | 6-7,3-6 | |
| ATP - München | 04/20 09:00 | 26 | [68] Marcos Giron v Alexander Ritschard [209] | 4-6,6-3,6-3 | |
| ATP - München | 04/17 09:00 | 25 | [49] Roberto Carballes Baena v Marcos Giron [67] | 1-6,7-5,2-6 | |
| ATP - Houston | 04/08 19:20 | 26 | [69] Marcos Giron v Tomas Machac [138] | 4-6,4-6 | |
| ATP - Houston | 04/04 19:55 | 25 | [69] Marcos Giron v Emilio Gomez [99] | 6-0,6-2 | |
| ATP - Miami | 03/23 16:00 | 23 | [71] Marcos Giron v Cristian Garin [82] | 4-6,6-2,4-6 | |
| ATP - Indian Wells | 03/11 05:00 | 24 | [16] Frances Tiafoe v Marcos Giron [73] | 6-2,6-2 | |
| ATP - Indian Wells | 03/08 19:00 | 23 | [73] Marcos Giron v Aleksandar Kovacevic [107] | 6-3,7-5 | |
| ATP - Acapulco | 02/28 00:00 | 25 | [69] Marcos Giron v Michael Mmoh [86] | 6-7,1-6 | |
| ATP - Delray Beach | 02/17 18:40 | 27 | [55] Marcos Giron v Miomir Kecmanovic [33] | 6-7,3-6 | |
| ATP - Delray Beach | 02/15 23:00 | 26 | Marcos Giron v Matija Pecotic | 6-3,6-3 | |
| ATP - Delray Beach | 02/15 01:25 | 25 | [42] Ben Shelton v Marcos Giron [55] | 4-6,4-6 | |
| ATP - Dallas | 02/11 01:00 | 27 | [8] Taylor Fritz v Marcos Giron [55] | 7-6,3-6,6-3 | |
| ATP - Dallas | 02/10 02:55 | 26 | [80] Oscar Otte v Marcos Giron [55] | 4-6,3-6 | |
| ATP - Dallas | 02/07 18:00 | 25 | [378] Alex Rybakov v Marcos Giron [55] | 4-6,7-6,1-6 | |
| Australian Open | 01/16 10:45 | 23 | [56] Marcos Giron v Daniil Medvedev [8] | 0-6,1-6,2-6 | |
| ATP - Auckland | 01/12 01:30 | 27 | [60] Marcos Giron v Cameron Norrie [12] | 1-6,7-6,2-6 | |
| ATP - Auckland | 01/10 22:45 | 26 | [66] J.J. Wolf v Marcos Giron [60] | 4-6,4-6 | |
| ATP - Auckland | 01/09 23:00 | 25 | [60] Marcos Giron v Federico Coria [76] | 6-7,6-4,7-5 | |
| ATP - Auckland | 01/09 22:00 | 25 | Marcos Giron v Pedro Martinez | Cancelled | |
| ATP - Adelaide | 01/04 10:00 | 26 | [61] Marcos Giron v Alexei Popyrin [120] | 6-4,4-6,3-6 | |
| ATP - Adelaide | 01/01 05:20 | 25 | [61] Marcos Giron v Richard Gasquet [68] | 7-6,6-7,7-5 | |
| ATP - Parijs | 10/29 18:30 | 46 | [58] Marcos Giron v Jiri Lehecka [78] | 5-7,3-6 | |
| ATP - Wenen | 10/28 12:00 | 27 | [32] Grigor Dimitrov v Marcos Giron [58] | 6-3,4-6,6-4 | |
| ATP - Wenen | 10/27 11:00 | 26 | [58] Marcos Giron v Cameron Norrie [13] | 6-3,6-4 | |
| ATP - Wenen | 10/26 11:00 | 25 | [71] Tallon Griekspoor v Marcos Giron [58] | 4-6,2-6 | |
| ATP - Antwerpen | 10/19 12:55 | 25 | [60] Marcos Giron v Sebastian Korda [36] | 3-6,7-6,4-6 | |
| ATP - Gijon | 10/12 18:00 | 26 | [165] Dominic Thiem v Marcos Giron [62] | 3-6,6-4,6-0 |
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.