Jaime Oncins (born 16 June 1970) is a former professional tennis player from Brazil.

Oncins represented his native country at the 1992 Summer Olympics in Barcelona, where he reached the quarterfinals before falling to Russia's Andrei Cherkasov. The right-hander won two individual career titles (Bologna and Búzios, both in 1992). He reached his highest singles ATP-ranking on May 3, 1993, when he became world No. 34.

Oncins' best performance at a major was at the 1992 French Open, where he reached the Round of 16, losing to eventual finalist, Petr Korda. In the second round of the tournament, Oncins had a famous victory from two sets down against former world No. 1 and three-time French Open champion, Ivan Lendl. Oncins was also the last player that Jimmy Connors beat at the US Open. Connors beat Oncins in straight sets in the first round of the 1992 US Open.

Oncins was a runner-up in the Roland Garros mixed doubles in 2001, with Paola Suárez from Argentina.

Grand Slam finals

Mixed doubles (1 runner-up) ResultYearChampionshipSurfacePartnerOpponentsScoreLoss 2001 French Open Clay Paola Suárez Tomás Carbonell Virginia Ruano Pascual 5–7, 3–6

ATP career finals

Singles: 5 (2 titles, 3 runner-ups) LegendGrand Slam Tournaments (0–0)ATP World Tour Finals (0–0)ATP Masters 1000 Series (0–0)ATP 500 Series (0–0)ATP 250 Series (2–3)Finals by surfaceHard (1–3)Clay (1–0)Grass (0–0)Carpet (0–0)Finals by settingOutdoors (2–3)Indoors (0–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Búzios, BrazilWorld SeriesHard Jordi Arrese6–1, 4–6, 0–6Loss0–2São Paulo, BrazilWorld SeriesHard Christian Miniussi6–2, 3–6, 4–6Win1–2Bologna, ItalyWorld SeriesClay Renzo Furlan6–2, 6–4Win2–2Búzios, BrazilWorld SeriesHard Luis Herrera6–3, 6–2Loss2–3São Paulo, BrazilWorld SeriesHard Luiz Mattar1–6, 4–6

Doubles: 11 (5 titles, 6 runner-ups) LegendGrand Slam Tournaments (0–0)ATP World Tour Finals (0–0)ATP Masters 1000 Series (0–0)ATP 500 Series (1–0)ATP 250 Series (4–6)Finals by surfaceHard (1–1)Clay (4–5)Grass (0–0)Carpet (0–0)Finals by settingOutdoors (5–6)Indoors (0–0)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1Wellington, New ZealandWorld SeriesHard John Letts Luiz Mattar Nicolás Pereira6–4, 6–7, 2–6Loss0–2Madrid, SpainWorld SeriesClay Luiz Mattar Gustavo Luza Cássio Motta0–6, 5–7Loss0–3Bologna, ItalyWorld SeriesClay Luiz Mattar Luke Jensen Laurie Warder4–6, 6–7Win1–3São Paulo, BrazilWorld SeriesHard Andrés Gómez Jorge Lozano Cássio Motta7–5, 6–4Win2–3Mexico City, MexicoWorld SeriesClay Leonardo Lavalle Horacio de la Peña Jorge Lozano7–6, 6–4Loss2–4Prague, Czech RepublicWorld SeriesClay Jorge Lozano Hendrik Jan Davids Libor Pimek3–6, 6–7Win3–4Casablanca, MoroccoWorld SeriesClay Fernando Meligeni Massimo Ardinghi Vincenzo Santopadre6–2, 6–3Win4–4Merano, ItalyWorld SeriesClay Lucas Arnold Ker Marc-Kevin Goellner Eric Taino6–4, 7–6Win5–4Stuttgart, GermanyChampionship SeriesClay Daniel Orsanic Aleksandar Kitinov Jack Waite6–2, 6–1Loss5–5Munich, GermanyInternational SeriesClay Daniel Orsanic Petr Luxa Radek Štěpánek7–5, 2–6, 6–7(5–7)Loss5–6Sankt Pölten, AustriaInternational SeriesClay Daniel Orsanic Petr Pála David Rikl3–6, 7–5, 5–7

ATP Challenger and ITF Futures finals

Singles: 13 (8–5) LegendATP Challenger (8–5)ITF Futures (0–0)Finals by surfaceHard (2–3)Clay (6–1)Grass (0–0)Carpet (0–1)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0Lins, BrazilChallengerClay Fernando Roese1–6, 6–0, 6–3Win2–0Campos do Jordão, BrazilChallengerHard Jose Daher6–2, 6–2Loss2–1Brasília, BrazilChallengerCarpet Cássio Motta6–7, 4–6Loss2–2Manaus, BrazilChallengerHard Luis-Enrique Herrera2–6, 5–7Win3–2São Paulo, BrazilChallengerClay Francisco Yunis6–3, 6–3Win4–2São Paulo, BrazilChallengerClay Fernando Roese6–4, 6–4Loss4–3São Paulo, BrazilChallengerHard Luis-Enrique Herrera2–6, 6–3, 4–6Loss4–4Recife, BrazilChallengerHard Luiz Mattar6–7, 7–5, 5–7Win5–4Natal, BrazilChallengerClay Marcelo Ingaramo3–6, 6–2, 6–3Win6–4Asunción, ParaguayChallengerClay Gastón Etlis6–3, 6–4Loss6–5Medellín, ColombiaChallengerClay Mauricio Hadad6–2, 3–6, 1–6Win7–5Belo Horizonto, BrazilChallengerHard Maurice Ruah6–4, 6–3Win8–5Seoul, South KoreaChallengerClay Patrik Fredriksson1–6, 6–1, 6–2

Doubles: 17 (11–6) LegendATP Challenger (11–6)ITF Futures (0–0)Finals by surfaceHard (2–3)Clay (8–3)Grass (0–0)Carpet (1–0)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1São Paulo, BrazilChallengerClay Otavio Della David Macpherson Gerardo Mirad6–2, 6–7, 2–6Win1–1Campos do Jordão, BrazilChallengerHard Jose Daher Nelson Aerts Fernando Roese7–6, 6–4Win2–1Brasília, BrazilChallengerCarpet Andrew Sznajder Luiz Mattar Fernando Roese7–5, 3–6, 7–6Win3–1Lisbon, PortugalChallengerClay David Adams Tarik Benhabiles Olivier Delaître5–7, 6–2, 6–3Win4–1São Paulo, BrazilChallengerClay Luiz Mattar Juan-Ignacio Garat Marcelo Saliola6–4, 6–4Loss4–2Yvetot, FranceChallengerClay Tomas Anzari Mårten Renström Mikael Tillström6–7, 7–5, 2–6Loss4–3Recife, BrazilChallengerHard Luiz Mattar Sébastien Lareau Daniel Nestor7–5, 4–6, 6–7Win5–3São Luis, BrazilChallengerHard Luiz Mattar Maurice Ruah Mario Tabares6–3, 7–5Loss5–4Natal, BrazilChallengerClay Luiz Mattar Stephen Noteboom Jack Waite6–4, 0–6, 3–6Loss5–5São Luis, BrazilChallengerHard Luiz Mattar Otavio Della Marcelo Saliola7–6, 3–6, 6–7Win6–5Punta del Este, UruguayChallengerClay Gustavo Kuerten Alejandro Hernández Simon Touzil5–7, 6–4, 7–6Loss6–6Tanagura, JapanChallengerHard Max Mirnyi Brian Macphie Roger Smith4–6, 4–6Win7–6Santiago, ChileChallengerClay Lucas Arnold Ker Diego del Río Mariano Puerta6–2, 6–2Win8–6Eisenach, GermanyChallengerClay Cristiano Testa Rene Nicklisch Patrick Sommer6–1, 6–3Win9–6Ulm, GermanyChallengerClay Márcio Carlsson Dirk Dier Michael Kohlmann6–4, 6–7, 6–3Win10–6Florianópolis, BrazilChallengerClay André Sá Marcelo Filippini Gonzalo Rodriguez6–0, 6–1Win11–6São Paulo, BrazilChallengerClay Daniel Orsanic Mariano Hood Sebastián Prieto6–2, 6–2

Performance timelines

Singles Tournament1990199119921993199419951996199719981999SRW–LWin %Grand Slam tournamentsAustralian OpenA3R1RAAAAAAA0 / 22–2French OpenA2R4R2RQ3AQ2Q1Q2Q10 / 35–3WimbledonQ11RAAAAAAAA0 / 10–1US OpenA1R1R1RAA1R1RAA0 / 50–5Win–loss0–03–43–31–20–00–00–10–10–00–00 / 117–11Olympic GamesSummer OlympicsNHQFNot HeldANot Held0 / 13–1ATP Masters SeriesIndian WellsAAA1RAAQ2AAA0 / 10–1MiamiA2R1R2R1RQ2Q1Q2AA0 / 41–4Monte CarloAAA1RAAAAAA0 / 10–1HamburgAAA3RAAAAAA0 / 12–1RomeAAA1RAAAAAA0 / 10–1Win–loss0–01–10–12–50–10–00–00–00–00–00 / 83–8

Doubles Tournament19911992199319941995199619971998199920002001SRW–LWin %Grand Slam tournamentsAustralian OpenA1RAAAAAAA1RA0 / 20–2French Open1R1R3R1RAAAA2RSF1R0 / 77–7Wimbledon1RAAAAAAA1R3RA0 / 32–3US Open2R1R1RAAAAA1R3R2R0 / 64–6Win–loss1–30–32–20–10–00–00–00–01–38–41–20 / 1813–18National RepresentationOlympic GamesSummer OlympicsNH1RNot HeldANot Held1RNH0 / 20–2Year-End ChampionshipsATP FinalsDid not qualifyRRDNQ0 / 11–2ATP Masters SeriesIndian WellsAAAAAAAAA1RA0 / 10–1MiamiAA1R1RAAAAA2R2R0 / 42–4Monte CarloAAAAAAAAAASF0 / 13–1HamburgAAQFAAAAAAQFQF0 / 36–3RomeAA2RAAAAAAQF2R0 / 34–3CanadaAAAAAAAAAA1R0 / 10–1StuttgartAAAAAAAAAQFA0 / 12–1ParisAAAAAAAAA1RA0 / 10–1Win–loss0–00–03–30–10–00–00–00–00–07–67–50 / 1517–15

External links