| ATP - Gijón | 10/11 12:00 | 25 | [62] Marcos Giron v Albert Ramos-Vinolas [40] | 4-6,6-4,6-2 | |
| ATP - Seul | 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 | |
| Open dos EUA | 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 - Maiorca | 06/23 12:35 | 27 | [67] Marcos Giron v Stefanos Tsitsipas [6] | 6-7,6-4,3-6 | |
| ATP - Maiorca | 06/22 11:00 | 26 | [67] Marcos Giron v Mackenzie McDonald [52] | 4-6,7-6,6-4 | |
| ATP - Maiorca | 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 - Estugarda | 06/06 12:15 | 25 | [53] Marcos Giron v Jan-Lennard Struff [103] | 5-7,7-5,6-7 | |
| Open de França | 05/22 09:00 | 23 | [20] Grigor Dimitrov v Marcos Giron [49] | 6-1,6-1,6-1 | |
| ATP - Genebra | 05/16 10:00 | 25 | [50] Ilya Ivashka v Marcos Giron [49] | 4-6,6-3,6-2 | |
| ATP - Roma | 05/12 12:20 | 26 | [60] Marcos Giron v Felix Auger Aliassime [9] | 3-6,2-6 | |
| ATP - Roma | 05/11 13:35 | 25 | [15] Diego Schwartzman v Marcos Giron [60] | 1-6,6-7 | |
| ATP - Roma | 05/09 14:25 | 24 | [41] Alexander Bublik v Marcos Giron [59] | 6-3,4-6,3-6 | |
| ATP - Roma | 05/08 09:00 | 19 | [52] Marcos Giron v Tallon Griekspoor [57] | 6-7,2-6 | |
| ATP - Roma | 05/07 08:00 | 14 | Marcos Giron v Gianmarco Ferrari | 6-7,6-3,6-2 |
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.