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 | |
Australian Open | 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 Basel | 10/25 11:35 | 25 | [28] Ugo Humbert v Marcos Giron [57] | 6-3,4-6,7-6 | |
ATP Tokyo | 10/21 05:00 | 28 | [19] Ben Shelton v Marcos Giron [79] | 6-7,7-6,6-4 | |
ATP Tokyo | 10/20 06:00 | 27 | [17] Felix Auger Aliassime v Marcos Giron [79] | 1-6,4-6 | |
ATP Tokyo | 10/18 09:00 | 26 | [79] Marcos Giron v Casper Ruud [8] | 6-3,6-4 | |
ATP Tokyo | 10/16 09:10 | 25 | [44] Yoshihito Nishioka v Marcos Giron [79] | 6-7,6-4,1-6 | |
ATP Tokyo | 10/15 04:50 | 19 | [80] Marcos Giron v Yasutaka Uchiyama [351] | 6-3,6-2 | |
ATP Tokyo | 10/14 02:00 | 14 | [80] Marcos Giron v Kaichi Uchida [270] | 6-4,6-3 | |
ATP Shanghai | 10/07 08:05 | 24 | [4] Jannik Sinner v Marcos Giron [80] | 7-6,6-2 | |
ATP Shanghai | 10/04 10:45 | 23 | [82] Marcos Giron v Daniel Elahi Galan [91] | 6-4,6-2 | |
ATP Astana | 09/30 10:15 | 26 | [82] Marcos Giron v Dominic Thiem [81] | 3-6,6-4,6-7 | |
ATP Astana | 09/28 10:50 | 25 | [47] Stan Wawrinka v Marcos Giron [82] | 7-6,6-7,6-7 |
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.