Player data updated: 2026-09-01 02:16 UTC

Guillermo Oropez

USA Age 79 Plays: Right-Handed ATP Tour years active: 1968–1977

Guillermo Oropez represented the United States on the ATP Tour and reached a career-high ranking of No. 222. In TennisDB's records, Guillermo Oropez finished with a career record of 3–5 and no singles titles.

Peak ranking

222 (Jul 17, 1978)

Elo peak

1531 (12th percentile)

Career record

3–5 (37.5%)

Career titles

Prize money

$180

Records cover recorded main-draw singles results in TennisDB's ATP event archive, including credited walkovers; qualifying is shown separately below.

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ATP Matches full match log →

Guillermo Oropez's recent, live, and scheduled ATP matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Barry Phillips Moore	2-6 6-1 5-7	L	—	Match data	Nov 8, 1977*	R64	Stockholm Open	ATP 250	Hard
Birger Andersson	5-7 2-6	L	H2H	Match data	Oct 13, 1977*	R32	Madrid	ATP 250	Clay
Henry Bunis	6-3 7-5	W	H2H	Match data	Oct 12, 1977*	R64	Madrid	ATP 250	Clay
Raul Ramirez #45	3-6 3-6	L	H2H	Match data	Sep 27, 1973*	R32	San Francisco	ATP 250	Carpet
Richard Russell	3-6 6-7	L	H2H	Match data	Sep 30, 1970*	R64	Berkeley	ATP 250	Hard

Rivals all rivalries →

Guillermo Oropez's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Barry Phillips Moore	0	1	1	Nov 8, 1977	—
Birger Andersson	0	1	1	Oct 13, 1977	H2H
Henry Bunis	1	0	1	Oct 12, 1977	H2H
Raul Ramirez	0	1	1	Sep 27, 1973	H2H
Richard Russell	0	1	1	Sep 30, 1970	H2H

Career Results

Guillermo Oropez career results by season
Season	Age	W	L	M	Win %	Start Rank	End Rank
1968	21	2	1	3	66.7%	—	—
1970	23	0	1	1	0.0%	—	—
1973	26	0	1	1	0.0%	—	—
1977	30	1	2	3	33.3%	—	—
Career		3	5	8	37.5%	—	—

Career Results by Surface

Guillermo Oropez career results by season and surface
Season	Age	Hard				Clay				Grass				Carpet				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1968	21	2	1	3	66.7%	—	—	—	—	—	—	—	—	—	—	—	—	2	1	3	66.7%
1970	23	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	0	1	1	0.0%
1973	26	—	—	—	—	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
1977	30	0	1	1	0.0%	1	1	2	50.0%	—	—	—	—	—	—	—	—	1	2	3	33.3%
Career	—	2	3	5	40.0%	1	1	2	50.0%	—	—	—	—	0	1	1	0.0%	3	5	8	37.5%

Career Results by Opponent Rank

Guillermo Oropez career results by season and opponent rank
Season	Age	1-10				11-30				31-100				100+				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1973	26	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
Career		0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%

Opponent ranking data available for 1/8 (12.5%) of Guillermo Oropez's ATP main draw matches.

Advanced Stats

Guillermo Oropez advanced statistics by season
Season	Age	Elo	P+	Serve+	Return+	PD	TPW%	Hard Elo	Clay Elo	Grass Elo	Set Win %	Set Margin	Dec. Set	Tiebreak	Pressure+	Schedule
1968	21	1515	103.5	—	—	—	—	+47	—	—	66.7%	+1.17	—	—	—	+0.08
1970	23	1495	97.2	—	—	—	—	—	—	—	0.0%	-2.00	—	0–1	—	+0.26
1973	26	1490	98.3	—	—	—	—	—	—	—	0.0%	-3.00	—	—	—	-0.04
1977	30	1479	96.9	—	—	—	—	—	—	—	42.9%	-0.28	0–1	—	—	+0.54
Career		1531	98.4	—	—	—	—	+47	—	—	41.2%	-0.29	0–1	0–1	—	+10.50

Tournament Results by Category

ATP 250

Guillermo Oropez ATP 250 results by season
Season	Age	MAD	STO	BER	SAN	W-L Win %
1968	21	—	—	R32	—	2–1 (67%)
1970	23	—	—	R64	—	0–1 (0%)
1973	26	—	—	—	R32	0–1 (0%)
1977	30	R32	R64	—	—	1–2 (33%)
W-L		1–1 (50%)	0–1 (0%)	2–2 (50%)	0–1 (0%)	3–5 (38%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Career high

222

Career-high date

Jul 17, 1978

First Top 100

—

First Top 50

—

First Top 20

—

First Top 10

—

Ranking History Matrix

Guillermo Oropez ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1978	31	235	—	—	—	—	—	222	—	—	—	—	291
1979	32	—	—	—	—	—	—	—	—	—	—	—	662
1980	33	—	—	—	—	—	—	—	—	—	—	—	457
1983	36	831	—	—	—	—	—	—	—	—	—	—	—

Similar Players

Other ATP players with comparable peak level, era, career record, and career scale.

Guillermo Oropez's most statistically similar ATP players
Player	Country	Peak Rank	Peak Elo	M	W	L	Win %	Years	Match Log
Geza Varga	HUN	228	1,551	36	14	22	38.9%	1968–1976	Match log
Allan McDonald	AUS	217	1,539	60	22	38	36.7%	1968–1975	Match log
Luis Felipe Tavares	BRA	210	1,533	23	9	14	39.1%	1969–1976	Match log
Thierry Bernasconi	FRA	235	1,546	37	13	24	35.1%	1969–1974	Match log
Peter Pokorny	AUT	221	1,509	56	18	38	32.1%	1968–1976	Match log
Jean Claude Barclay	FRA	218	1,594	63	20	43	31.7%	1968–1976	Match log
Derek Schroder	RSA	214	1,568	53	17	36	32.1%	1968–1975	Match log
Larry Turville	USA	210	1,500	22	6	16	27.3%	1968–1978	Match log
Peter Curtis	GBR	235	1,696	129	53	76	41.1%	1968–1975	Match log
Will Coghlan	AUS	244	1,526	13	4	9	30.8%	1968–1976	Match log
Bill Freer	RSA	237	1,540	32	10	22	31.3%	1969–1975	Match log
Fernando Gentil	BRA	222	1,516	13	3	10	23.1%	1968–1976	Match log

Frequently Asked Questions

How old is Guillermo Oropez?: Guillermo Oropez is 79 years old, born on February 7, 1947.
Which country does Guillermo Oropez represent?: Guillermo Oropez represents United States in TennisDB's ATP records.
Is Guillermo Oropez left-handed or right-handed?: Guillermo Oropez plays right-handed.
How many Grand Slams has Guillermo Oropez won?: Guillermo Oropez has not won a Grand Slam title.
How many Masters 1000 titles has Guillermo Oropez won?: TennisDB does not group any of Guillermo Oropez's titles under the modern Masters 1000 category.
What is Guillermo Oropez's highest ATP ranking?: Guillermo Oropez's career-high ATP singles ranking is world No. 222, first achieved on July 17, 1978.
What is Guillermo Oropez's career win-loss record?: Guillermo Oropez has a career ATP singles record of 3 wins and 5 losses (37.5%).
How much career prize money has Guillermo Oropez earned?: Guillermo Oropez has earned at least $180 in career prize money from professional tennis.
Which seasons of Guillermo Oropez's career appear in TennisDB?: Guillermo Oropez appears in TennisDB's ATP main-tour match records from 1968 through 1977.
Who has Guillermo Oropez faced most often?: Guillermo Oropez's most frequent opponent is Barry Phillips Moore, with a head-to-head record of 0–1 across 1 meeting.