| ATP - Monte Carlo | 04/09 11:20 | 24 | [49] Zhizhen Zhang v Marcos Giron [48] | 6-4,3-6,6-3 | |
| ATP - Houston | 04/05 21:05 | 27 | [51] Marcos Giron v Luciano Darderi [72] | 0-6,4-6 | |
| ATP - Houston | 04/04 02:05 | 26 | [51] Marcos Giron v J.J. Wolf [96] | 6-4,6-3 | |
| ATP - Houston | 04/03 01:55 | 25 | [51] Marcos Giron v Denis Shapovalov [121] | 6-2,7-5 | |
| ATP - Miami | 03/21 01:00 | 23 | [51] Marcos Giron v Dominik Koepfer [50] | 6-4,1-6,4-6 | |
| ATP - Indian Wells | 03/06 19:00 | 23 | [99] Thanasi Kokkinakis v Marcos Giron [48] | 6-3,7-5 | |
| ATP - Los Cabos | 02/22 01:40 | 26 | [52] Marcos Giron v Casper Ruud [12] | 1-6,0-6 | |
| ATP - Los Cabos | 02/21 01:10 | 25 | [63] Taro Daniel v Marcos Giron [52] | 4-6,5-7 | |
| ATP - Delray Beach | 02/18 01:10 | 28 | [9] Taylor Fritz v Marcos Giron [52] | 7-6,6-2 | |
| ATP - Delray Beach | 02/16 23:00 | 27 | [52] Marcos Giron v Patrick Kypson [155] | 6-4,6-4 | |
| ATP - Delray Beach | 02/14 23:00 | 26 | [19] Adrian Mannarino v Marcos Giron [52] | 0-6,7-6,1-6 | |
| ATP - Delray Beach | 02/13 23:00 | 25 | [52] Marcos Giron v Emilio Nava [144] | 6-4,7-6 | |
| ATP - Dallas | 02/11 19:00 | 29 | [67] Marcos Giron v Tommy Paul [15] | 6-7,7-5,3-6 | |
| ATP - Dallas | 02/10 23:00 | 28 | [67] Marcos Giron v Adrian Mannarino [17] | 6-1,6-3 | |
| ATP - Dallas | 02/10 01:00 | 27 | [14] Frances Tiafoe v Marcos Giron [67] | 1-6,4-6 | |
| ATP - Dallas | 02/07 18:00 | 26 | [67] Marcos Giron v Max Purcell [43] | 6-4,6-3 | |
| ATP - Dallas | 02/06 19:30 | 25 | [154] Nicolas Moreno De Alboran v Marcos Giron [67] | 1-6,4-6 | |
| Open da Austrália | 01/16 03:10 | 23 | [66] Marcos Giron v Jack Draper [55] | 4-6,6-3,6-4,0-6,2-6 | |
| ATP - Auckland | 01/07 23:00 | 25 | [56] Daniel Altmaier v Marcos Giron [60] | 7-6,6-2 | |
| ATP - Metz | 11/06 13:00 | 25 | [59] Marcos Giron v Lorenzo Sonego [49] | 6-2,3-6,6-7 | |
| ATP - Paris | 10/31 14:35 | 24 | [26] Ugo Humbert v Marcos Giron [59] | 6-4,6-3 | |
| ATP - Paris | 10/29 11:30 | 19 | [53] Dusan Lajovic v Marcos Giron [57] | 5-7,7-5,6-7 | |
| ATP - Paris | 10/28 14:35 | 14 | [79] Dominik Koepfer v Marcos Giron [57] | 6-7,3-6 | |
| ATP - Basileia | 10/25 11:35 | 25 | [28] Ugo Humbert v Marcos Giron [57] | 6-3,4-6,7-6 | |
| ATP - Tóquio | 10/21 05:00 | 28 | [19] Ben Shelton v Marcos Giron [79] | 6-7,7-6,6-4 | |
| ATP - Tóquio | 10/20 06:00 | 27 | [17] Felix Auger Aliassime v Marcos Giron [79] | 1-6,4-6 | |
| ATP - Tóquio | 10/18 09:00 | 26 | [79] Marcos Giron v Casper Ruud [8] | 6-3,6-4 | |
| ATP - Tóquio | 10/16 09:10 | 25 | [44] Yoshihito Nishioka v Marcos Giron [79] | 6-7,6-4,1-6 | |
| ATP - Tóquio | 10/15 04:50 | 19 | [80] Marcos Giron v Yasutaka Uchiyama [351] | 6-3,6-2 | |
| ATP - Tóquio | 10/14 02:00 | 14 | [80] Marcos Giron v Kaichi Uchida [270] | 6-4,6-3 |
Wikipedia - Marcos Giron
Marcos Andres Giron (born July 24, 1993; Spanish: Girón) is an American professional tennis player. He achieved a career-high singles ranking of No. 44 on 19 Feb 2024 and a doubles ranking of No. 194 on August 1, 2022. He won the boys' singles in the Ojai Tennis Tournament in 2009 and the men’s invitational in 2011. In 2014, Giron won the singles title at the 2014 NCAA Division I Tennis Championships for UCLA.