|Full name||Marcos Andres Giron|
|Country (sports)||United States|
|Residence||Thousand Oaks, California|
|Born||July 24, 1993|
Thousand Oaks, California
|Height||5 ft 11 in (1.80 m)|
|Plays||Right-handed (two-handed backhand)|
|Coach||Evan Lee, Robby Ginepri|
|Highest ranking||No. 70 (4 January 2021)|
|Current ranking||No. 75 (14 June 2021)|
|Grand Slam Singles results|
|Australian Open||1R (2020, 2021)|
|French Open||3R (2021)|
|US Open||2R (2020)|
|Highest ranking||No. 199 (1 July 2019)|
|Current ranking||No. 657 (14 June 2021)|
|Grand Slam Doubles results|
|Australian Open||1R (2021)|
|US Open||1R (2014)|
|Last updated on: 14 June 2021.|
Marcos Giron (born July 24, 1993) is an American professional tennis player. He achieved a career-high singles ranking of No. 70 on 4 January 2021 and a doubles ranking of No. 199 on 1 July 2019. He won the men's singles in the Ojai Tennis Tournament in 2011.In 2014, Giron won the singles title at the NCAA Division I Men's Tennis Championship for UCLA.
Giron reached the second rounds of a Grand Slam at the 2020 US Open and at the 2020 French Open for the first time in his career.
In November 2020, Giron recorded his first top ten win against Matteo Berrettini at the Paris Masters.
Giron participated in the main draw as a direct entry at the 2021 Australian Open for a second consecutive year.
In June 2021, Giron reached the third round of a Grand Slam at the 2021 French Open for the first time in his career.
|Win||1–0||Sep 2013||USA F23, Claremont||Futures||Hard||Dennis Novikov||6–0, 7–5|
|Win||2–0||Sep 2013||USA F25, Laguna Niguel||Futures||Hard||Jarmere Jenkins||4–6, 6–1, 6–1|
|Win||3–0||Mar 2014||USA F9, Calabasas||Futures||Hard||Jason Jung||6–4, 4–6, 6–4|
|Loss||3–1||Nov 2014||Mexico F13, Mazatlán||Futures||Hard||Daniel Nguyen||0–6, 6–2, 6–7(0–7)|
|Win||4–1||Oct 2016||USA F33, Berkeley||Futures||Hard||André Göransson||5–7, 7–6(7–5), 6–4|
|Win||5–1||Jan 2017||USA F2, Long Beach||Futures||Hard||Collin Altamirano||7–6(7–3), 6–1|
|Loss||5–2||May 2017||China F7, Wuhan||Futures||Hard||Dayne Kelly||6–7(4–7), 6–7(6–8)|
|Win||6–2||May 2017||China F8, Fuzhou||Futures||Hard||Alexander Sarkissian||7–5, 6–4|
|Loss||6–3||Jul 2017||Canada F4, Saskatoon||Futures||Hard||Filip Peliwo||6–7(7–9), 7–6(7–5), 1–6|
|Loss||6–4||Mar 2018||USA F8, Calabasas||Futures||Hard||JC Aragone||2–6, 4–6|
|Win||7–4||Jan 2019||Orlando, U.S.||Challenger||Hard||Darian King||6–4, 6–4|
|Win||8–4||Nov 2019||Houston, U.S.||Challenger||Hard||Ivo Karlovic||7–5, 6–7(5–7), 7–6(11–9)|
|Loss||0–1||Sep 2012||USA F26, Irvine||Futures||Hard||Dennis Novikov|| Devin Britton |
|Loss||0–2||Jun 2013||USA F17, Rochester||Futures||Clay||Dennis Novikov|| Chase Buchanan |
|Win||1–2||Jul 2013||USA F18, Pittsburgh||Futures||Clay||Connor Smith|| Christopher Mengel|
|Loss||1–3||Jul 2013||USA F20, Godfrey||Futures||Hard||Devin McCarthy|| Evan King |
|Win||2–3||Sep 2013||USA F24, Costa Mesa||Futures||Hard||Mackenzie McDonald|| Keith-Patrick Crowley|
|Loss||2–4||Jun 2015||Canada F3, Richmond||Futures||Hard||Farris Fathi Gosea|| Hunter Nicholas|
|Win||3–4||Aug 2015||Canada F6, Saskatoon||Futures||Hard||Farris Fathi Gosea|| Patrick Davidson|
|Win||4–4||Feb 2019||Dallas, U.S.||Challenger||Hard (i)||Dennis Novikov|| Ante Pavić |
|Win||5–4||Mar 2019||Indian Wells, U.S.||Challenger||Hard||JC Aragone|| Darian King |
Giron's match record against players who have been ranked in the ATP top 10 (former #1 in bold):
|1.||Matteo Berrettini||10||Paris Masters, France||Hard(i)||2R||7–6 (7–3), 6–7 (0–7), 7–5||91|
Current through the 2021 French Open.
|Grand Slam tournaments|
|Australian Open||A||A||A||A||A||A||1R||1R||0 / 2||0–2|
|French Open||A||A||A||A||A||Q2||2R||3R||0 / 2||3–2|
|Wimbledon||A||A||A||A||A||1R||NH||0 / 1||0–1|
|US Open||1R||Q1||A||Q1||A||1R||2R||0 / 3||1–3|
|Win–Loss||0–1||0–0||0–0||0–0||0–0||0–2||1–3||2–2||0 / 8||4–8|
|ATP World Tour Masters 1000|
|Indian Wells Masters||Q1||A||A||Q1||Q1||3R||NH||0 / 1||2–1|
|Miami Open||A||A||A||A||A||A||NH||2R||0 / 1||1–1|
|Madrid Open||A||A||A||A||A||A||NH||2R||0 / 1||1–1|
|Italian Open||A||A||A||A||A||A||Q1||Q1||0 / 0||0–0|
|Cincinnati Masters||Q1||A||A||A||A||A||2R||0 / 1||1–1|
|Paris||A||A||A||A||A||A||3R||0 / 1||2–1|
|Wikimedia Commons has media related to Marcos Giron .|
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