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

Joao Zwetsch

BRA Age 57 180 cm / 5'11" Plays: Right-Handed ATP Tour years active: 1990–1991

Joao Zwetsch represented Brazil on the ATP Tour and reached a career-high ranking of No. 231. In TennisDB's records, Joao Zwetsch finished with a career record of 1–2 and no singles titles.

Peak ranking
231 (Jun 17, 1991)
Elo peak
1500 (3rd percentile)
Career record
1–2 (33.3%)
Career titles
0
Prize money
$37,779

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 →

Joao Zwetsch's recent, live, and scheduled ATP matches
OpponentScoreResultH2HMatch DataDateRoundTournamentCategorySurface
Francisco Montana #161 1-6 2-6 L H2H Match data Sep 12, 1991* R32 Brasilia ATP 250 Carpet
Fabio Silberberg #307 6-2 7-6(2) W H2H Match data Sep 11, 1991* R64 Brasilia ATP 250 Carpet
Ivan Kley #303 6-3 4-6 4-6 L H2H Match data Feb 8, 1990* R32 Guaruja ATP 250 Hard

Rivals all rivalries →

Joao Zwetsch's most-played ATP rivals
OpponentWLMLast PlayedH2H
Francisco Montana 0 1 1 Sep 12, 1991 H2H
Fabio Silberberg 1 0 1 Sep 11, 1991 H2H
Ivan Kley 0 1 1 Feb 8, 1990 H2H

Career Results

Joao Zwetsch career results by season
SeasonAgeWLMWin %Start RankEnd Rank
1990210110.0%332293
19912211250.0%293324
Career12333.3%——

Career Results by Surface

Joao Zwetsch career results by season and surface
SeasonAge HardClayGrassCarpetTotal
WLMWin %WLMWin %WLMWin %WLMWin % WLMWin %
199021 0110.0%———————————— 0110.0%
199122 ————————————11250.0% 11250.0%
Career—0110.0%————————11250.0%12333.3%

Career Results by Opponent Rank

Joao Zwetsch career results by season and opponent rank
SeasonAge 1-1011-3031-100100+Total
WLMWin %WLMWin %WLMWin %WLMWin % WLMWin %
199021 00——00——00——0110.0% 0110.0%
199122 00——00——00——11250.0% 11250.0%
Career 00——00——00——12333.3% 12333.3%

Performance Stats

Joao Zwetsch performance statistics by season
SeasonAgeSampleAces/MDFs/M1st Sv%1st Sv Pts%2nd Sv Pts%BP Saved%BP Conv%Svc Pts%Ret Pts%
199122 2/2 2.0 1.0 67.1% 66.4% 46.4% 75.0% 12.5% 60.4% 32.7%
Career 2/3 2.0 1.0 67.1% 66.4% 46.4% 75.0% 12.5% 60.4% 32.7%

Detailed serve and return statistics available for 2/3 (66.7%) of Joao Zwetsch's ATP main draw matches.

Advanced Stats

Joao Zwetsch 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
1990 21 1479 99.0 — — — — — — — 33.3% -0.33 0–1 — — +0.36
1991 22 1480 97.1 -0.77 -1.41 0.826 47.0% — — — 50.0% -1.00 — 1–0 — +0.22
Career 1500 98.0 -0.77 -1.41 0.826 47.0% — — — 42.9% -0.71 0–1 1–0 — +19.33

Tournament Results by Category

ATP 250

Joao Zwetsch ATP 250 results by season
SeasonAge BRAGUA W-L
Win %
199021 —R32 0–1 (0%)
199122 R32— 1–1 (50%)
W-L 1–1
(50%)		0–1
(0%)		 1–2
(33%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Career high
231
Career-high date
Jun 17, 1991
First Top 100
—
First Top 50
—
First Top 20
—
First Top 10
—

Ranking History Matrix

Joao Zwetsch ranking history by month and season
SeasonAgeJanFebMarAprMayJunJulAugSepOctNovDec
198516——————————805794
198617789783735731715708736764775780855870
198718870801866888890903901920920639647668
198819668707587587525530440439453511517519
198920514416424387414408460367369368348328
199021326368357364360362340277282282282293
199122293299308313234231249330318323324324
199223330318327320472534540630753760789711
199324715721730930933940965545541553552591
199425589584588578583587581600718599603560
199526557554564558441420427413486533552573
199627572537549780509530538523532541435433
199728432460460455572451456456447438537561
199829529529531530555813814815819826971973
19993013121307130312881297———————

Similar Players

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

Joao Zwetsch's most statistically similar ATP players
Player Country Peak Rank Peak Elo Grand Slams Titles M W L Win % Years Match Log
Ricardo Acioly BRA 228 1,507 0 0 9 3 6 33.3% 1986–1991 Match log
Buff Farrow USA 224 1,510 0 0 6 2 4 33.3% 1988–1993 Match log
Igor Saric CRO 218 1,522 0 0 3 1 2 33.3% 1986–1993 Match log
George Cosac ROU 265 1,517 0 0 3 1 2 33.3% 1989–1995 Match log
Morten Christensen DEN 250 1,521 0 0 8 2 6 25.0% 1987–1996 Match log
Damir Buljevic CRO 204 1,501 0 0 4 1 3 25.0% 1988–1993 Match log
Ralph Kok NED 243 1,500 0 0 5 1 4 20.0% 1989–1993 Match log
Bret Garnett USA 203 1,547 0 0 27 8 19 29.6% 1988–1993 Match log
Florian Krumrey GER 219 1,508 0 0 3 1 2 33.3% 1991–1992 Match log
Agustin Garizzio ARG 171 1,513 0 0 3 1 2 33.3% 1988–1994 Match log
Steve Devries USA 221 1,524 0 0 18 4 14 22.2% 1983–1991 Match log
Girts Dzelde LAT 273 1,514 0 0 14 4 10 28.6% 1989–1995 Match log

Frequently Asked Questions

How old is Joao Zwetsch?
Joao Zwetsch is 57 years old, born on September 12, 1968.
Which country does Joao Zwetsch represent?
Joao Zwetsch represents Brazil in TennisDB's ATP records.
How tall is Joao Zwetsch?
Joao Zwetsch is 180 cm / 5'11".
Is Joao Zwetsch left-handed or right-handed?
Joao Zwetsch plays right-handed.
How many Grand Slams has Joao Zwetsch won?
Joao Zwetsch has not won a Grand Slam title.
How many Masters 1000 titles has Joao Zwetsch won?
TennisDB does not group any of Joao Zwetsch's titles under the modern Masters 1000 category.
What is Joao Zwetsch's highest ATP ranking?
Joao Zwetsch's career-high ATP singles ranking is world No. 231, first achieved on June 17, 1991.
What is Joao Zwetsch's career win-loss record?
Joao Zwetsch has a career ATP singles record of 1 wins and 2 losses (33.3%).
How much career prize money has Joao Zwetsch earned?
Joao Zwetsch has earned at least $37,779 in career prize money from professional tennis.
Which seasons of Joao Zwetsch's career appear in TennisDB?
Joao Zwetsch appears in TennisDB's ATP main-tour match records from 1990 through 1991.
Who has Joao Zwetsch faced most often?
Joao Zwetsch's most frequent opponent is Francisco Montana, with a head-to-head record of 0–1 across 1 meeting.