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Jaime Oncins
Country (sports)	Brazil
Residence	São Paulo, Brazil
Born	16 June 1970 (age 54); São Paulo, Brazil
Height	1.95 m (6 ft 5 in)
Turned pro	1988
Retired	2001
Plays	Right-handed (one-handed backhand)
Prize money	$1,211,476
Singles
Career record	76–95
Career titles	2 ; 8 Challenger, 0 Futures
Highest ranking	No. 34 (3 May 1993)
Grand Slam singles results
Australian Open	3R (1991)
French Open	4R (1992)
Wimbledon	1R (1991)
US Open	1R (1991, 1992, 1993, 1996, 1997)
Other tournaments
Olympic Games	QF (1992)
Doubles
Career record	126–125
Career titles	5 ; 11 Challenger, 0 Futures
Highest ranking	No. 22 (10 July 2000)
Grand Slam doubles results
Australian Open	1R (1992, 2000)
French Open	SF (2000)
Wimbledon	3R (2000)
US Open	3R (2000)
Other doubles tournaments
Olympic Games	1R (1992, 2000)
Grand Slam mixed doubles results
French Open	F (2001)
US Open	2R (2000)
Team competitions
Davis Cup	SF (1992, 2000)
	Last updated on: 11 July 2022.

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)

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

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

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)

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

Singles: 13 (8–5)

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)

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

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

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

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%