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

Jaime Oncins
Country (sports) Brazil
ResidenceSão Paulo, Brazil
Born (1970-06-16) 16 June 1970 (age 54)
São Paulo, Brazil
Height1.95 m (6 ft 5 in)
Turned pro1988
Retired2001
PlaysRight-handed (one-handed backhand)
Prize money$1,211,476
Singles
Career record76–95
Career titles2
8 Challenger, 0 Futures
Highest rankingNo. 34 (3 May 1993)
Grand Slam singles results
Australian Open3R (1991)
French Open4R (1992)
Wimbledon1R (1991)
US Open1R (1991, 1992, 1993, 1996, 1997)
Other tournaments
Olympic GamesQF (1992)
Doubles
Career record126–125
Career titles5
11 Challenger, 0 Futures
Highest rankingNo. 22 (10 July 2000)
Grand Slam doubles results
Australian Open1R (1992, 2000)
French OpenSF (2000)
Wimbledon3R (2000)
US Open3R (2000)
Other doubles tournaments
Olympic Games1R (1992, 2000)
Grand Slam mixed doubles results
French OpenF (2001)
US Open2R (2000)
Team competitions
Davis CupSF (1992, 2000)
Last updated on: 11 July 2022.

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

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Mixed doubles (1 runner-up)

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Result Year Championship Surface Partner Opponents Score
Loss 2001 French Open Clay   Paola Suárez   Tomás Carbonell
  Virginia Ruano Pascual
5–7, 3–6

ATP career finals

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Singles: 5 (2 titles, 3 runner-ups)

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Legend
Grand 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 surface
Hard (1–3)
Clay (1–0)
Grass (0–0)
Carpet (0–0)
Finals by setting
Outdoors (2–3)
Indoors (0–0)
Result W–L Date Tournament Tier Surface Opponent Score
Loss 0–1 Oct 1991 Búzios, Brazil World Series Hard   Jordi Arrese 6–1, 4–6, 0–6
Loss 0–2 Nov 1991 São Paulo, Brazil World Series Hard   Christian Miniussi 6–2, 3–6, 4–6
Win 1–2 May 1992 Bologna, Italy World Series Clay   Renzo Furlan 6–2, 6–4
Win 2–2 Nov 1992 Búzios, Brazil World Series Hard   Luis Herrera 6–3, 6–2
Loss 2–3 Nov 1992 São Paulo, Brazil World Series Hard   Luiz Mattar 1–6, 4–6

Doubles: 11 (5 titles, 6 runner-ups)

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Legend
Grand 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 surface
Hard (1–1)
Clay (4–5)
Grass (0–0)
Carpet (0–0)
Finals by setting
Outdoors (5–6)
Indoors (0–0)
Result W–L Date Tournament Tier Surface Partner Opponents Score
Loss 0–1 Jan 1991 Wellington, New Zealand World Series Hard   John Letts   Luiz Mattar
  Nicolás Pereira
6–4, 6–7, 2–6
Loss 0–2 Apr 1991 Madrid, Spain World Series Clay   Luiz Mattar   Gustavo Luza
  Cássio Motta
0–6, 5–7
Loss 0–3 May 1991 Bologna, Italy World Series Clay   Luiz Mattar   Luke Jensen
  Laurie Warder
4–6, 6–7
Win 1–3 Nov 1991 São Paulo, Brazil World Series Hard   Andrés Gómez   Jorge Lozano
  Cássio Motta
7–5, 6–4
Win 2–3 Feb 1993 Mexico City, Mexico World Series Clay   Leonardo Lavalle   Horacio de la Peña
  Jorge Lozano
7–6, 6–4
Loss 2–4 Aug 1993 Prague, Czech Republic World Series Clay   Jorge Lozano   Hendrik Jan Davids
  Libor Pimek
3–6, 6–7
Win 3–4 Mar 1999 Casablanca, Morocco World Series Clay   Fernando Meligeni   Massimo Ardinghi
  Vincenzo Santopadre
6–2, 6–3
Win 4–4 Jun 1999 Merano, Italy World Series Clay   Lucas Arnold Ker   Marc-Kevin Goellner
  Eric Taino
6–4, 7–6
Win 5–4 Jul 1999 Stuttgart, Germany Championship Series Clay   Daniel Orsanic   Aleksandar Kitinov
  Jack Waite
6–2, 6–1
Loss 5–5 Apr 2001 Munich, Germany International Series Clay   Daniel Orsanic   Petr Luxa
  Radek Štěpánek
7–5, 2–6, 6–7(5–7)
Loss 5–6 May 2001 Sankt Pölten, Austria International Series Clay   Daniel Orsanic   Petr Pála
  David Rikl
3–6, 7–5, 5–7

ATP Challenger and ITF Futures finals

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Singles: 13 (8–5)

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Legend
ATP Challenger (8–5)
ITF Futures (0–0)
Finals by surface
Hard (2–3)
Clay (6–1)
Grass (0–0)
Carpet (0–1)
Result W–L Date Tournament Tier Surface Opponent Score
Win 1–0 Aug 1989 Lins, Brazil Challenger Clay   Fernando Roese 1–6, 6–0, 6–3
Win 2–0 Jul 1990 Campos do Jordão, Brazil Challenger Hard   Jose Daher 6–2, 6–2
Loss 2–1 Aug 1990 Brasília, Brazil Challenger Carpet   Cássio Motta 6–7, 4–6
Loss 2–2 Oct 1990 Manaus, Brazil Challenger Hard   Luis-Enrique Herrera 2–6, 5–7
Win 3–2 Nov 1990 São Paulo, Brazil Challenger Clay   Francisco Yunis 6–3, 6–3
Win 4–2 Oct 1991 São Paulo, Brazil Challenger Clay   Fernando Roese 6–4, 6–4
Loss 4–3 May 1992 São Paulo, Brazil Challenger Hard   Luis-Enrique Herrera 2–6, 6–3, 4–6
Loss 4–4 Oct 1992 Recife, Brazil Challenger Hard   Luiz Mattar 6–7, 7–5, 5–7
Win 5–4 Sep 1993 Natal, Brazil Challenger Clay   Marcelo Ingaramo 3–6, 6–2, 6–3
Win 6–4 Jun 1995 Asunción, Paraguay Challenger Clay   Gastón Etlis 6–3, 6–4
Loss 6–5 Jun 1996 Medellín, Colombia Challenger Clay   Mauricio Hadad 6–2, 3–6, 1–6
Win 7–5 Aug 1996 Belo Horizonto, Brazil Challenger Hard   Maurice Ruah 6–4, 6–3
Win 8–5 Oct 1996 Seoul, South Korea Challenger Clay   Patrik Fredriksson 1–6, 6–1, 6–2

Doubles: 17 (11–6)

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Legend
ATP Challenger (11–6)
ITF Futures (0–0)
Finals by surface
Hard (2–3)
Clay (8–3)
Grass (0–0)
Carpet (1–0)
Result W–L Date Tournament Tier Surface Partner Opponents Score
Loss 0–1 Jul 1989 São Paulo, Brazil Challenger Clay   Otavio Della   David Macpherson
  Gerardo Mirad
6–2, 6–7, 2–6
Win 1–1 Jul 1990 Campos do Jordão, Brazil Challenger Hard   Jose Daher   Nelson Aerts
  Fernando Roese
7–6, 6–4
Win 2–1 Aug 1990 Brasília, Brazil Challenger Carpet   Andrew Sznajder   Luiz Mattar
  Fernando Roese
7–5, 3–6, 7–6
Win 3–1 Apr 1991 Lisbon, Portugal Challenger Clay   David Adams   Tarik Benhabiles
  Olivier Delaître
5–7, 6–2, 6–3
Win 4–1 Oct 1991 São Paulo, Brazil Challenger Clay   Luiz Mattar   Juan-Ignacio Garat
  Marcelo Saliola
6–4, 6–4
Loss 4–2 Jun 1992 Yvetot, France Challenger Clay   Tomas Anzari   Mårten Renström
  Mikael Tillström
6–7, 7–5, 2–6
Loss 4–3 Oct 1992 Recife, Brazil Challenger Hard   Luiz Mattar   Sébastien Lareau
  Daniel Nestor
7–5, 4–6, 6–7
Win 5–3 Nov 1992 São Luis, Brazil Challenger Hard   Luiz Mattar   Maurice Ruah
  Mario Tabares
6–3, 7–5
Loss 5–4 Sep 1993 Natal, Brazil Challenger Clay   Luiz Mattar   Stephen Noteboom
  Jack Waite
6–4, 0–6, 3–6
Loss 5–5 Nov 1993 São Luis, Brazil Challenger Hard   Luiz Mattar   Otavio Della
  Marcelo Saliola
7–6, 3–6, 6–7
Win 6–5 Feb 1996 Punta del Este, Uruguay Challenger Clay   Gustavo Kuerten   Alejandro Hernández
  Simon Touzil
5–7, 6–4, 7–6
Loss 6–6 Oct 1996 Tanagura, Japan Challenger Hard   Max Mirnyi   Brian Macphie
  Roger Smith
4–6, 4–6
Win 7–6 Oct 1997 Santiago, Chile Challenger Clay   Lucas Arnold Ker   Diego del Río
  Mariano Puerta
6–2, 6–2
Win 8–6 Jun 1998 Eisenach, Germany Challenger Clay   Cristiano Testa   Rene Nicklisch
  Patrick Sommer
6–1, 6–3
Win 9–6 Jul 1998 Ulm, Germany Challenger Clay   Márcio Carlsson   Dirk Dier
  Michael Kohlmann
6–4, 6–7, 6–3
Win 10–6 Sep 1998 Florianópolis, Brazil Challenger Clay   André Sá   Marcelo Filippini
  Gonzalo Rodriguez
6–0, 6–1
Win 11–6 Oct 1999 São Paulo, Brazil Challenger Clay   Daniel Orsanic   Mariano Hood
  Sebastián Prieto
6–2, 6–2

Performance timelines

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Key
W  F  SF QF #R RR Q# DNQ A NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.

Singles

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Tournament 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 SR W–L Win %
Grand Slam tournaments
Australian Open A 3R 1R A A A A A A A 0 / 2 2–2 50%
French Open A 2R 4R 2R Q3 A Q2 Q1 Q2 Q1 0 / 3 5–3 63%
Wimbledon Q1 1R A A A A A A A A 0 / 1 0–1 0%
US Open A 1R 1R 1R A A 1R 1R A A 0 / 5 0–5 0%
Win–loss 0–0 3–4 3–3 1–2 0–0 0–0 0–1 0–1 0–0 0–0 0 / 11 7–11 39%
Olympic Games
Summer Olympics NH QF Not Held A Not Held 0 / 1 3–1 75%
ATP Masters Series
Indian Wells A A A 1R A A Q2 A A A 0 / 1 0–1 0%
Miami A 2R 1R 2R 1R Q2 Q1 Q2 A A 0 / 4 1–4 20%
Monte Carlo A A A 1R A A A A A A 0 / 1 0–1 0%
Hamburg A A A 3R A A A A A A 0 / 1 2–1 67%
Rome A A A 1R A A A A A A 0 / 1 0–1 0%
Win–loss 0–0 1–1 0–1 2–5 0–1 0–0 0–0 0–0 0–0 0–0 0 / 8 3–8 27%

Doubles

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Tournament 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 SR W–L Win %
Grand Slam tournaments
Australian Open A 1R A A A A A A A 1R A 0 / 2 0–2 0%
French Open 1R 1R 3R 1R A A A A 2R SF 1R 0 / 7 7–7 50%
Wimbledon 1R A A A A A A A 1R 3R A 0 / 3 2–3 40%
US Open 2R 1R 1R A A A A A 1R 3R 2R 0 / 6 4–6 40%
Win–loss 1–3 0–3 2–2 0–1 0–0 0–0 0–0 0–0 1–3 8–4 1–2 0 / 18 13–18 42%
National Representation
Olympic Games
Summer Olympics NH 1R Not Held A Not Held 1R NH 0 / 2 0–2 0%
Year-End Championships
ATP Finals Did not qualify RR DNQ 0 / 1 1–2 33%
ATP Masters Series
Indian Wells A A A A A A A A A 1R A 0 / 1 0–1 0%
Miami A A 1R 1R A A A A A 2R 2R 0 / 4 2–4 33%
Monte Carlo A A A A A A A A A A SF 0 / 1 3–1 75%
Hamburg A A QF A A A A A A QF QF 0 / 3 6–3 67%
Rome A A 2R A A A A A A QF 2R 0 / 3 4–3 57%
Canada A A A A A A A A A A 1R 0 / 1 0–1 0%
Stuttgart A A A A A A A A A QF A 0 / 1 2–1 67%
Paris A A A A A A A A A 1R A 0 / 1 0–1 0%
Win–loss 0–0 0–0 3–3 0–1 0–0 0–0 0–0 0–0 0–0 7–6 7–5 0 / 15 17–15 53%
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