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|Born||23 October 1967|
|Height||1.70 m (5 ft 7 in)|
|Plays||Right-handed (one-handed backhand)|
|Highest ranking||No. 18 (30 October 1989)|
|Grand Slam Singles results|
|Australian Open||QF (1991)|
|French Open||4R (1994)|
|Wimbledon||2R (1991, 1992, 1994)|
|US Open||QF (1994)|
|Highest ranking||No. 54 (20 November 1989)|
|Grand Slam Doubles results|
|French Open||2R (1989)|
|US Open||1R (1989, 1990)|
Yzaga played on the professional tour from 1984 to 1996, reaching career-high rankings of world No. 18 in singles and world No. 54 in doubles (both in 1989).
He was a quarterfinalist at the Australian Open in 1991, and at the US Open in 1994, reaching the final eight by defeating in back-to-back matches finalists of the previous edition: Cédric Pioline and Pete Sampras in five sets. Yzaga came back from a 2-sets-to-0 deficit against Pioline and 2-sets-to-1 against Sampras. At 5'7" / 1.70m, he was the shortest Grand Slam tournament quarterfinalist until Diego Schwartzman, also 5'7", at the 2017 U.S. Open.
He had earlier been the first-ever opponent of Sampras in the main draw of a Grand Slam tournament, in the first round of the 1988 US Open, also winning that match in 5 sets.
Since retiring as a player, Yzaga has served as captain of Peru's Davis Cup team.
Singles (8 wins - 3 losses)Edit
|Win||1–0||Jul 1987||Schenectady, U.S.||Hard||Jim Pugh||0–6, 7–6(7–4), 6–1|
|Win||2–0||Nov 1987||São Paulo, Brazil||Hard||Luiz Mattar||6–2, 4–6, 6–2|
|Win||3–0||Nov 1988||Itaparica, Brazil||Hard||Javier Frana||7–6(7–4), 6–2|
|Loss||3–1||May 1989||Forest Hills, U.S.||Clay||Ivan Lendl||2–6, 1–6|
|Loss||3–2||Oct 1990||São Paulo, Brazil||Carpet||Robbie Weiss||6–3, 6–7(7–9), 3–6|
|Win||4–2||May 1991||Charlotte, U.S.||Clay||Jimmy Arias||6–3, 7–5|
|Win||5–2||Jan 1992||Auckland, New Zealand||Hard||MaliVai Washington||7–6(8–6), 6–4|
|Win||6–2||Apr 1992||Tampa, U.S.||Clay||MaliVai Washington||3–6, 6–4, 6–1|
|Loss||6–3||Apr 1993||Charlotte, U.S.||Clay||Horacio de la Peña||6–3, 3–6, 4–6|
|Win||7–3||May 1993||Tampa, U.S.||Clay||Richard Fromberg||6–4, 6–2|
|Win||8–3||Oct 1993||Sydney Indoor, Australia||Hard (i)||Petr Korda||6–4, 4–6, 7–6(7–4), 7–6(9–7)|
Doubles (3 losses)Edit
|Loss||0–1||May 1988||Boston, U.S.||Clay||Bruno Orešar|| Jorge Lozano
|6–3, 5–7, 2–6|
|Loss||0–1||May 1989||Charleston, U.S.||Clay||Agustín Moreno|| Mikael Pernfors
|4–6, 6–4, 5–7|
|Loss||0–2||Oct 1989||Bordeaux, France||Clay||Agustín Moreno|| Tomás Carbonell
Carlos di Laura
- "Denis Shapovalov's New York adventure comes to an end". The Irish Times. 4 September 2017.