French Open 05/30 13:15 23 [17] Grigor Dimitrov v Marcos Giron [82] Retired
ATP - Parma 05/23 13:35 25 [446] Flavio Cobolli v Marcos Giron [82] 3-6,7-6,7-6
ATP - Rím 05/08 13:35 14 [91] Marcos Giron v Federico Delbonis [77] 3-6,3-6
ATP - Madrid 05/04 17:20 25 [4] Dominic Thiem v Marcos Giron [91] 6-1,6-3
ATP - Madrid 05/03 14:55 24 [79] Pablo Andujar v Marcos Giron [91] 7-6,6-7,5-7
ATP - Madrid 05/02 09:00 19 [59] Yoshihito Nishioka v Marcos Giron [92] Retired
ATP - Madrid 05/01 09:00 14 [92] Marcos Giron v Thiago Monteiro [78] 6-4,6-7,7-6
ATP - Estoril 04/27 14:25 25 [92] Marcos Giron v Corentin Moutet [73] 4-6,7-6,4-6
ATP - Miami 03/26 15:00 24 [88] Marcos Giron v Taylor Fritz [32] 2-6,2-6
ATP - Miami 03/24 16:40 23 [88] Marcos Giron v Tommy Paul [53] 7-6,6-4
ATP - Rotterdam 03/02 11:40 25 [80] Marcos Giron v Andrey Rublev [8] 6-7,3-6
ATP - Rotterdam 02/28 10:00 19 [78] Marcos Giron v Norbert Gombos [93] 6-3,6-4
ATP - Rotterdam 02/27 10:00 14 [78] Marcos Giron v Tim Van Rijthoven [328] 6-2,5-7,6-4
ATP - Montpellier 02/23 09:30 25 [160] Tallon Griekspoor v Marcos Giron [78] 6-2,6-7,6-3
Australian Open 02/08 03:30 23 [73] Marcos Giron v Alexander Zverev [7] 7-6,6-7,3-6,2-6
ATP Murray River Open 02/05 01:10 26 [73] Marcos Giron v Daniel Evans [33] 4-6,6-7
ATP Murray River Open 02/02 23:30 25 [35] Adrian Mannarino v Marcos Giron [73] 3-6,4-6
ATP Murray River Open 02/02 02:25 24 [73] Marcos Giron v Michael Mmoh [177] 6-1,7-5
ATP - Paríž 11/05 11:35 26 [91] Marcos Giron v Miloš Raonić [17] 6-7,2-6
ATP - Paríž 11/03 21:00 25 [10] Matteo Berrettini v Marcos Giron [91] 6-7,7-6,5-7
ATP - Paríž 11/02 11:45 24 [46] Albert Ramos-Vinolas v Marcos Giron [86] 3-6,6-4,1-6
ATP - Paríž 11/01 10:00 19 [54] Laslo Djere v Marcos Giron [86] 6-7,6-7
ATP - Paríž 10/31 09:00 14 [100] Roberto Carballes Baena v Marcos Giron [86] 4-6,1-6
ATP - Antverpy 10/23 16:55 27 [94] Marcos Giron v Alex De Minaur [29] 3-6,0-6
ATP - Antverpy 10/22 19:10 26 [14] David Goffin v Marcos Giron [94] 3-6,5-7
ATP - Antverpy 10/20 12:25 25 Marcos Giron v Luca Nardi 4-6,6-4,6-1
ATP - Antverpy 10/19 10:00 19 [90] Marcos Giron v Yasutaka Uchiyama [95] 7-6,6-2
ATP - Antverpy 10/18 10:00 14 [90] Marcos Giron v Kamil Majchrzak [105] 6-3,4-6,6-3
ATP - Kolín nad Rýnom 10/13 15:05 25 [90] Marcos Giron v Marin Čilić [40] 2-6,6-4,3-6
ATP - Kolín nad Rýnom 10/11 11:45 164 [90] Lloyd Harris v Marcos Giron [96] 2-6,6-4,6-2

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 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.