ATP New York | 02/11 03:10 | 25 | [141] Jack Sock v Marcos Giron [113] | 3-6,4-6 | |
Challenger Newport Beach | 01/28 21:05 | 25 | [107] Marcos Giron v Sebastian Korda [246] | 4-6,6-3,6-7 | |
Australian Open | 01/20 09:05 | 23 | [79] Philipp Kohlschreiber v Marcos Giron [107] | 7-5,6-1,6-2 | |
Challenger Bendigo | 01/17 02:30 | 28 | [75] Stefano Travaglia v Marcos Giron [112] | 6-3,6-3 | |
Challenger Bendigo | 01/16 04:00 | 27 | [112] Marcos Giron v Roberto Carballes Baena [80] | 6-4,6-2 | |
Challenger Bendigo | 01/15 02:00 | 26 | [112] Marcos Giron v Sasikumar Mukund [272] | 6-4,6-3 | |
Challenger Bendigo | 01/14 00:35 | 25 | [112] Marcos Giron v Michail Pervolarakis [483] | 6-3,6-0 | |
Challenger Canberra | 01/08 01:45 | 25 | [286] Harry Bourchier v Marcos Giron [107] | 6-3,6-7,6-3 | |
Challenger Houston | 11/17 19:00 | 29 | [123] Marcos Giron v Ivo Karlovic [106] | 7-5,6-7,7-6 | |
Challenger Houston | 11/16 22:50 | 28 | [197] Mitchell Krueger v Marcos Giron [123] | 6-7,2-6 | |
Challenger Houston | 11/15 22:35 | 27 | [123] Marcos Giron v Jason Jung [130] | 6-1,2-6,6-2 | |
Challenger Houston | 11/15 18:00 | 26 | [123] Marcos Giron v Jenson Brooksby [274] | 6-2,4-6,6-3 | |
Challenger Houston | 11/13 23:55 | 25 | Marcos Giron v Brandon Holt | 7-6,6-7,6-2 | |
Challenger Knoxville | 11/05 23:55 | 25 | [124] Marcos Giron v Liam Broady [262] | 6-2,6-7,5-7 | |
Challenger Charlottesville | 11/01 16:35 | 27 | [212] Dmitry Popko v Marcos Giron [125] | 6-3,6-4 | |
Challenger Charlottesville | 10/31 14:00 | 26 | [169] Darian King v Marcos Giron [125] | 4-6,6-3,6-7 | |
Challenger Charlottesville | 10/30 15:45 | 25 | [320] Kevin King v Marcos Giron [125] | 6-4,2-6,4-6 | |
Challenger Las Vegas | 10/18 19:50 | 27 | [149] Christopher O'Connell v Marcos Giron [127] | 7-6,3-6,7-6 | |
Challenger Las Vegas | 10/17 19:35 | 26 | [449] Michail Pervolarakis v Marcos Giron [127] | 0-6,6-7 | |
Challenger Las Vegas | 10/16 17:30 | 25 | [330] Kevin King v Marcos Giron [127] | 4-6,3-6 | |
Challenger Tiburon | 09/26 22:30 | 26 | [214] Thai-Son Kwiatkowski v Marcos Giron [126] | 4-6,7-6,6-4 | |
Challenger Tiburon | 09/25 17:00 | 25 | [350] Michael Redlicki v Marcos Giron [126] | 4-6,5-7 | |
Challenger Cary | 09/11 15:00 | 25 | [484] Ben Patael v Marcos Giron [126] | Retired | |
Challenger New Haven | 09/08 15:30 | 29 | [114] Tommy Paul v Marcos Giron [151] | 6-3,6-3 | |
Challenger New Haven | 09/07 15:20 | 28 | [99] Damir Dzumhur v Marcos Giron [151] | 5-7,7-5,2-6 | |
Challenger New Haven | 09/06 15:30 | 27 | [151] Marcos Giron v Brayden Schnur [92] | 6-3,6-2 | |
Challenger New Haven | 09/05 14:00 | 26 | [139] Denis Istomin v Marcos Giron [151] | 6-2,6-7,3-6 | |
Challenger New Haven | 09/04 18:50 | 25 | John McNally v Marcos Giron | 6-7,6-7 | |
US Open | 08/26 22:30 | 23 | [59] Yoshihito Nishioka v Marcos Giron [151] | 3-6,6-4,6-4,6-4 | |
ATP Winston-Salem | 08/20 02:25 | 24 | [155] Marcos Giron v Roberto Carballes Baena [76] | 2-6,6-2,3-6 |
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 February 2024 and a doubles ranking of No. 194 on 1 August 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.