The ATP Challenger Series is the second-tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1990 ATP Challenger Series calendar comprises 71 tournaments, with prize money ranging from $25,000 up to $100,000.^[1]

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
January 1	No tournaments scheduled.
January 8	No tournaments scheduled.
January 15	Jakarta-1 Challenger Jakarta, Indonesia $25,000 – clay – 32S/16D Singles draw – Doubles draw	Horst Skoff 6–2, 4–6, 6–1	Chris Garner	Brian Devening Kim Bong-soo	Yoo Jin-Sun Xavier Daufresne Pablo Arraya Thomas Buchmayer
		Eric Amend Tom Mercer 6–4, 6–7, 6–3	Adam Malik Joseph Russell
January 22	Intersport Heilbronn Open Heilbronn, West Germany $50,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Milan Šrejber 7–6, 4–6, 7–6	Alexander Mronz	Christian Saceanu Jeff Tarango	Mark Kaplan Olivier Soules Martin Sinner Jörgen Windahl
		David Rikl Tomáš Anzari 7–6, 7–6	Byron Talbot Jörgen Windahl
January 29	No tournaments scheduled.

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
February 5	Telford Challenger Telford, Great Britain $50,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Fabrice Santoro 6–3, 5–7, 6–4	Peter Nyborg	Andrew Castle Brian Garrow	Chris Bailey Simon Youl Patrick Baur Christian Bergström
		Nick Brown Nick Fulwood 6–4, 7–5	Russell Barlow Martin Sinner
February 12	Croydon Challenger Croydon, Great Britain $50,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Christian Saceanu 6–3, 6–0	Udo Riglewski	Olivier Soules Nuno Marques	Robbie Weiss Chris Bailey Alexander Mronz Nick Brown
		Andrew Castle Olivier Delaître 7–6, 6–3	Nick Brown Nick Fulwood
	Nairobi-1 Challenger Nairobi, Kenya $25,000 – clay – 32S/16D Singles draw – Doubles draw	Christian Miniussi 2–6, 6–3, 6–4	Pablo Arraya	Joseph Russell Menno Oosting	Oliver Fuchs Josef Čihák Sascha Nensel Ugo Colombini
		Eduardo Masso Christian Miniussi 3–6, 7–5, 7–6	João Cunha e Silva Menno Oosting
	São Paulo-1 Challenger São Paulo, Brazil $50,000 – hard – 32S/16D Singles draw – Doubles draw	Miguel Nido 6–3, 6–4	Cássio Motta	Ivan Kley José Daher	Juan Pino Jeff Tarango Javier Frana Pablo Albano
		Javier Frana Gustavo Luza 6–3, 7–6	Ricardo Camargo Ivan Kley
February 19	Nairobi-2 Challenger Nairobi, Kenya $25,000 – clay – 32S/16D Singles draw – Doubles draw	Christian Miniussi 6–2, 7–6	Menno Oosting	Srinivasan Vasudevan Thomas Buchmayer	Torben Theine Cyril Suk Pablo Arraya João Cunha e Silva
		João Cunha e Silva Eduardo Masso 6–4, 7–5	Zeeshan Ali Libor Pimek
February 26	Palm Hills International Tennis Challenger Cairo, Egypt $100,000 – clay – 32S/16D Singles draw – Doubles draw	Thomas Muster 6–4, 6–3	José Francisco Altur	Tomás Carbonell Jordi Arrese	Simon Youl Todd Woodbridge Nuno Marques Johan Anderson
		David Rikl Tomáš Anzari 6–3, 6–7, 7–5	Eduardo Masso Christian Miniussi

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
March 5	Martinique Challenger Martinique, French West Indies $50,000 – hard – 32S/16D Singles draw – Doubles draw	Guillaume Raoux 3–6, 6–3, 6–3	Robbie Weiss	David Engel Bruno Orešar	Tom Nijssen Paul Wekesa Arnaud Boetsch Johan Carlsson
		Olivier Delaître Guillaume Raoux 6–3, 7–5	Todd Nelson Roger Smith
March 12	Agadir Challenger Agadir, Morocco $75,000 – clay – 32S/16D Singles draw – Doubles draw	Thomas Muster 6–2, 7–5	Guillermo Pérez Roldán	Richard Fromberg Paul Haarhuis	Franco Davín Mark Koevermans Roberto Azar Christian Miniussi
		Josef Čihák Cyril Suk W/O	Omar Camporese Diego Nargiso
March 19	No tournaments scheduled.
March 26	Estoril Challenger Estoril, Portugal $100,000 – clay – 32S/16D Singles draw – Doubles draw	Thierry Tulasne 6–2, 2–3, retired	Christian Miniussi	Lars Jönsson Nuno Marques	Fabrice Santoro Richard Fromberg Udo Riglewski Fernando Luna
		Karsten Braasch Hendrik Jan Davids 5–7, 7–5, 6–2	Tomás Carbonell Udo Riglewski
	Jerusalem Challenger Jerusalem, Israel $50,000 – hard – 32S/16D Singles draw – Doubles draw	Raviv Weidenfeld 5–7, 6–4, 7–6	Shahar Perkiss	Martin Sinner Cristiano Caratti	Gilad Bloom Christian Geyer Mark Kaplan Christian Saceanu
		Henrik Holm Peter Nyborg 6–1, 2–6, 6–3	Cristian Brandi Cristiano Caratti

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
April 2	Zaragoza Challenger Zaragoza, Spain $50,000 – clay (I) – 32S/16D Singles draw – Doubles draw	Carlos Costa 6–3, 6–4	Francesco Cancellotti	Stefano Pescosolido José Francisco Altur	Aki Rahunen Francisco Roig Claudio Pistolesi Diego Nargiso
		David Rikl Tomáš Anzari 6–3, 7–6	Carlos Costa Francisco Roig
April 9	Brasília-1 Challenger Brasília, Brazil $100,000 – carpet – 32S/16D Singles draw – Doubles draw	Olivier Delaître 7–6, 6–1	Brian Garrow	Patrick Baur Gianluca Pozzi	Simone Colombo Chris Pridham Nelson Aerts Cássio Motta
		Nelson Aerts Fernando Roese 6–3, 7–5	Simone Colombo César Kist
	Cape Town Challenger Cape Town, South Africa $100,000 – hard (I) – 32S/16D Singles draw – Doubles draw	Gary Muller 5–7, 6–2, 6–3	Jeremy Bates	Neil Borwick Darren Cahill	Christian Geyer Pieter Aldrich Johan Kriek Danie Visser
		Jeremy Bates Marius Barnard 6–3, 6–1	Wayne Ferreira Piet Norval
	Parioli Challenger Rome, Italy $50,000 – clay – 32S/16D Singles draw – Doubles draw	Fernando Luna 6–3, 4–6, 6–4	Magnus Larsson	Christian Miniussi David Engel	Branislav Stankovič Nicklas Kulti Stefano Pescosolido Thomas Haldin
		Branislav Stankovič Richard Vogel 7–5, 6–3	Nicola Bruno Stefano Pescosolido
	San Luis Potosí Challenger San Luis Potosí, Mexico $100,000 – clay – 32S/16D Singles draw – Doubles draw	Ricki Osterthun 6–4, 6–4	MaliVai Washington	Leonardo Lavalle Philip Johnson	Christian Bergström Hendrik Jan Davids Scott Warner Carl Limberger
		Leonardo Lavalle Jorge Lozano 5–7, 6–3, 6–2	Luis Herrera Fernando Pérez Pascal
April 16	Durban Challenger Durban, South Africa $50,000 – hard – 32S/16D Singles draw – Doubles draw	Jeremy Bates 6–4, 6–1	Grant Stafford	Stefan Kruger Robbie Weiss	Johan Kriek Michael Robertson Wayne Ferreira Martin Sinner
		Wayne Ferreira Piet Norval 6–0, 2–6, 6–3	Stefan Kruger Greg Van Emburgh
	Mexico City Challenger Mexico City, Mexico $100,000 – clay – 32S/16D Singles draw – Doubles draw	Francisco Maciel 2–6, 7–6, 6–3	Luis Herrera	Pablo Arraya Jorge Lozano	Andrew Sznajder Leonardo Lavalle Bryan Shelton Martin Wostenholme
		Pablo Albano Ville Jansson 7–6, 4–6, 7–5	Nduka Odizor Bryan Shelton
	Porto Challenger Porto, Portugal $100,000 – clay – 32S/16D Singles draw – Doubles draw	Mark Koevermans 6–3, 6–3	Franco Davín	Richard Fromberg Tarik Benhabiles	Nuno Marques Renzo Furlan Jens Wöhrmann Lawson Duncan
		Eduardo Bengoechea Christian Miniussi 6–0, 6–3	José Clavet Francisco Roig
April 23	Nagoya Challenger Nagoya, Japan $50,000 – hard – 32S/16D Singles draw – Doubles draw	Ramesh Krishnan 6–2, 6–4	Brian Garrow	Shuzo Matsuoka Chris Pridham	Ctislav Doseděl Christian Saceanu Buff Farrow Menno Oosting
		Johan Carlsson David Lewis 7–5, 6–2	Shuzo Matsuoka Shigeru Ota
	Pretoria Challenger Pretoria, South Africa $25,000 – hard (I) – 32S/16D Singles draw – Doubles draw	Martin Sinner 6–4, 6–4	Wayne Ferreira	Robbie Weiss Christian Geyer	Byron Talbot Alexander Mronz Royce Deppe Martin Davis
		Mark Keil Scott Patridge 6–7, 6–4, 6–4	Stefan Kruger Greg Van Emburgh
April 30	Tampa Challenger Tampa, United States $50,000 – clay – 32S/16D Singles draw – Doubles draw	Bryan Shelton 6–7, 6–2, 6–1	Broderick Dyke	Ville Jansson Jimmy Brown	John Sobel Pablo Arraya David Pate John Ross
		Ken Flach Doug Flach 3–6, 7–6, 6–4	Broderick Dyke Tobias Svantesson

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
May 7	Kuala Lumpur Challenger Kuala Lumpur, Malaysia $50,000 – hard – 32S/16D Singles draw – Doubles draw	Nduka Odizor 6–3, 3–6, 6–3	Ctislav Doseděl	Jacco Eltingh Jan Siemerink	David Harkness Menno Oosting Bruce Derlin Jonathan Canter
		Nduka Odizor Paul Wekesa 6–3, 6–4	Jonathan Canter Bruce Derlin
	Renault Slovenian Open Ljubljana, Yugoslavia $50,000 – clay – 32S/16D Singles draw – Doubles draw	Magnus Larsson 7–5, 6–7, 7–6	Diego Nargiso	Omar Camporese Mark Koevermans	Andres Võsand Bart Wuyts Carlos Costa Massimo Cierro
		Carlos Costa Francisco Roig 6–7, 6–4, 6–4	Omar Camporese Mark Koevermans
May 14	Bangkok Challenger Bangkok, Thailand $25,000 – hard – 32S/16D Singles draw – Doubles draw	Ctislav Doseděl 6–3, 6–4	Patrick Baur	Menno Oosting João Cunha e Silva	Jan Siemerink Nduka Odizor Jonathan Canter Harald Rittersbacher
		Jonathan Canter Bruce Derlin 6–4, 6–4	Neil Borwick David Lewis
May 21	No tournaments scheduled.
May 28	Franken Challenge Fürth, West Germany $50,000 – clay – 32S/16D Singles draw – Doubles draw	Jeff Tarango 6–0, 6–0	Felipe Rivera	Pablo Arraya Bart Wuyts	Richard Vogel Marcos Górriz Peter Ballauff Jan Apell
		Peter Ballauff Ricki Osterthun 7–6, 4–6, 6–3	Marcos Górriz Andrei Olhovskiy

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
June 4	No tournaments scheduled.
June 11	No tournaments scheduled.
June 18	No tournaments scheduled.
June 25	Turin Challenger Turin, Italy $50,000 – clay – 32S/16D Singles draw – Doubles draw	João Cunha e Silva 7–6, 6–7, 6–4	Jimmy Brown	Gabriel Markus Marcos Górriz	Bernd Karbacher Bart Wuyts Renzo Furlan Pablo Arraya
		Neil Borwick David Lewis 6–2, 3–6, 6–2	Christer Allgårdh Martin Sinner

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
July 2	Salou Challenger Salou, Spain $75,000 – clay – 32S/16D Singles draw – Doubles draw	Marcelo Filippini 6–3, 6–1	Jimmy Arias	Renzo Furlan Francisco Clavet	Jimmy Brown José Francisco Altur David de Miguel Philip Johnson
		Neil Borwick David Lewis 6–3, 5–7, 6–3	Jimmy Arias Steve DeVries
July 9	Neu-Ulm Challenger Neu-Ulm, West Germany $50,000 – clay – 32S/16D Singles draw – Doubles draw	Dimitri Poliakov 3–6, 7–5, 6–3	Bart Wuyts	Marcelo Ingaramo Claudio Pistolesi	Jens Wöhrmann Gabriel Markus Renzo Furlan Rüdiger Haas
		Massimo Cierro Simone Colombo 0–6, 6–2, 6–1	George Cosac Vojtěch Flégl
July 16	Bristol Challenger Bristol, Great Britain $50,000 – grass – 32S/16D Singles draw – Doubles draw	Christian Saceanu 6–3, 6–7, 6–3	Arnaud Boetsch	Mark Petchey Chris Wilkinson	Peter Nyborg Menno Oosting Royce Deppe Libor Pimek
		Andrei Olhovskiy Olli Rahnasto 7–5, 6–4	Arnaud Boetsch Peter Nyborg
	Gramado Challenger Gramado, Brazil $50,000 – clay – 32S/16D Singles draw – Doubles draw	Pedro Rebolledo 6–2, 6–3	Christian Weis	William Kyriakos Pablo Albano	José Clavet Eduardo Bengoechea Agustín Moreno João Cunha e Silva
		Ivan Kley Vicente Solves 6–3, 7–5	Pablo Albano Eduardo Bengoechea
	Tampere Open Tampere, Finland $100,000 – clay – 32S/16D Singles draw – Doubles draw	Renzo Furlan 6–3, 6–3	Fernando Luna	Veli Paloheimo Nicklas Kulti	Magnus Zeile Magnus Larsson Aki Rahunen Martin Střelba
		Mark Koevermans Jan Siemerink 6–2, 6–1	Massimo Cierro Tobias Svantesson
July 23	Comerica Bank Challenger Aptos, United States $50,000 – hard – 32S/16D Singles draw – Doubles draw	Henrik Holm 1–6, 6–3, 7–6	Brian Garrow	Nuno Marques Diego Nargiso	David Nainkin Alexander Mronz Johan Carlsson Matt Anger
		Jeff Brown Scott Melville 6–7, 6–4, 6–4	Matt Anger Marius Barnard
	Campos Challenger Campos, Brazil $50,000 – hard – 32S/16D Singles draw – Doubles draw	Jaime Oncins 6–3, 6–3	José Daher	Marcelo Saliola Daniel Orsanic	Cássio Motta Frédéric Fontang Fernando Roese João Cunha e Silva
		José Daher Jaime Oncins 7–6, 6–4	Nelson Aerts Fernando Roese
	Hanko Challenger Hanko, Finland $75,000 – clay – 32S/16D Singles draw – Doubles draw	Martin Sinner 6–3, 6–3	Andrei Olhovskiy	Jan Siemerink Veli Paloheimo	Olli Rahnasto Marcos Górriz Andres Võsand Bart Wuyts
		Johan Anderson Lars-Anders Wahlgren 6–3, 7–6	Tomas Nydahl Peter Svensson
July 30	Lins Challenger Lins, Brazil $50,000 – clay – 32S/16D Singles draw – Doubles draw	Pedro Rebolledo 7–6, 4–6, 6–1	João Zwetsch	Luiz Mattar Daniel Orsanic	Nelson Aerts Pablo Albano Jaime Oncins João Cunha e Silva
		José Luis Aparisi José Clavet 7–6, 6–3	Javier Frana Agustín Moreno
	Nielsen Pro Tennis Championship Winnetka, United States $50,000 – hard – 32S/16D Singles draw – Doubles draw	Cristiano Caratti 7–6, 6–1	Chris Garner	Chris Pridham Grant Stafford	Todd Martin Nuno Marques Tommy Ho Mark Petchey
		Zeeshan Ali Menno Oosting 4–6, 6–3, 6–2	Doug Flach Luis Herrera

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
August 6	Jakarta-2 Challenger Jakarta, Indonesia $25,000 – hard – 32S/16D Singles draw – Doubles draw	Mark Keil 6–4, 6–2	Scott Patridge	Kim Bong-soo Paul Hand	Harald Rittersbacher Mike Briggs Daniel Heryanto Eduardo Furusho
		Mike Briggs David Harkness 6–2, 7–6	Suharyadi Suharyadi Lin Bing-chao
	Knokke Challenger Knokke, Belgium $50,000 – clay – 32S/16D Singles draw – Doubles draw	Marcos Górriz 7–5, 2–6, 6–1	Josef Čihák	Germán López Libor Pimek	Raúl Viver Paul Dogger Filip Dewulf Daniele Balducci
		Andrei Olhovskiy Dimitri Poliakov 6–4, 4–6, 6–3	Xavier Daufresne Denis Langaskens
	São Paulo-2 Challenger São Paulo, Brazil $50,000 – clay – 32S/16D Singles draw – Doubles draw	João Cunha e Silva 6–1, 6–2	Cássio Motta	Javier Frana Pedro Rebolledo	Frédéric Fontang Pablo Albano Jaime Oncins Vicente Solves
		Javier Frana Cássio Motta 6–3, 3–6, 6–1	Gabriel Markus João Zwetsch
August 13	Brasília-2 Challenger Brasília, Brazil $75,000 – hard – 64S/32D Singles draw – Doubles draw	Cássio Motta 7–6, 6–4	Jaime Oncins	Mauro Menezes Danilo Marcelino	Nelson Aerts Vicente Solves Ricardo Acioly Fernando Roese
		Jaime Oncins Andrew Sznajder 7–5, 3–6, 7–6	Luiz Mattar Fernando Roese
	Pescara Challenger Pescara, Italy $50,000 – clay – 32S/16D Singles draw – Doubles draw	Christer Allgårdh 4–6, 6–3, 6–4	Germán López	Éric Winogradsky Thomas Haldin	Branislav Stankovič Massimo Cierro Francesco Cancellotti Stefano Pescosolido
		Branislav Stankovič Richard Vogel 6–3, 6–1	Massimo Cierro Alessandro de Minicis
	Salzburg Challenger Salzburg, Austria $100,000 – clay – 32S/16D Singles draw – Doubles draw	Horst Skoff 6–2, 6–2	José Francisco Altur	Renzo Furlan Nicklas Kulti	Marián Vajda Christian Geyer Horacio de la Peña Jimmy Brown
		Horacio de la Peña Horst Skoff 6–2, 6–4	Johan Donar Ola Jonsson
August 20	Geneva Open Challenger Geneva, Switzerland $50,000 – clay – 32S/16D Singles draw – Doubles draw	Roberto Argüello 6–3, 6–0	Daniel Orsanic	Henrik Holm Tomáš Anzari	Jacco Eltingh Stefano Mezzadri Michael Tauson Frédéric Fontang
		Henrik Holm Nils Holm 3–6, 7–5, 7–6	Branislav Stankovič Richard Vogel
August 27	Verona Challenger Verona, Italy $50,000 – clay – 32S/16D Singles draw – Doubles draw	Richard Krajicek 4–6, 6–1, 6–4	Jacco Eltingh	Paolo Pambianco Corrado Aprili	Daniel Orsanic Dimitri Poliakov Jan Siemerink José Clavet
		Ctislav Doseděl Dimitri Poliakov 6–0, 6–7, 6–4	Jacco Eltingh Menno Oosting

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
September 3	Hossegor Challenger Hossegor, France $100,000 – clay – 32S/16D Singles draw – Doubles draw	Rodolphe Gilbert 6–4, 6–4	Ronald Agénor	Nuno Marques Renzo Furlan	Bart Wuyts Fernando Luna Tom Nijssen José Francisco Altur
		Marcos Górriz Marcelo Ingaramo 7–5, 6–2	Eduardo Bengoechea Eduardo Masso
	Venice Challenger Venice, Italy $50,000 – clay – 32S/16D Singles draw – Doubles draw	Bruno Orešar 6–3, 6–3	Andrei Olhovskiy	Oliver Fuchs Claudio Pistolesi	Paolo Canè Pablo Arraya Massimo Cierro Germán López
		Cristian Brandi Federico Mordegan 6–1, 6–4	Henrik Holm Nils Holm
September 10	Azores Challenger Azores, Portugal $50,000 – hard – 32S/16D Singles draw – Doubles draw	Francisco Roig 6–3, 2–6, 6–4	Chris Pridham	Ken Flach Nduka Odizor	Maurice Ruah Frédéric Fontang Daniel Marco Johan Carlsson
		Brent Haygarth Scott Patridge 6–7, 7–6, 6–3	Andrew Castle Nduka Odizor
	Canberra Challenger Canberra, Australia $25,000 – carpet – 32S/16D Singles draw – Doubles draw	Brett Steven 6–3, 6–4	Andrew Kratzmann	Jamie Morgan John Stimpson	Michael Brown Francisco Montana Sandon Stolle Brett Custer
		Brett Custer Peter Doohan 6–3, 6–4	David Adams Jamie Morgan
September 17	Coquitlam Challenger Coquitlam, Canada $50,000 – hard – 32S/16D Singles draw – Doubles draw	Steve DeVries 3–6, 7–5, 7–5	Chuck Adams	Chris Garner Robbie Weiss	Mike Briggs Miguel Nido Otis Smith George Bezecny
		Steve DeVries Patrick Galbraith 7–5, 7–5	Otis Smith Roger Smith
	Dijon Challenger Dijon, France $100,000 – carpet – 32S/16D Singles draw – Doubles draw	Guillaume Raoux 2–6, 6–4, 6–4	Henrik Holm	Nuno Marques Jan Apell	Dirk Dier Martin Sinner Rodolphe Gilbert Michael Kupferschmid
		Mansour Bahrami Rodolphe Gilbert 7–5, 6–2	Jan Apell Peter Nyborg
	International Tournament of Messina Messina, Italy $100,000 – clay – 32S/16D Singles draw – Doubles draw	Guillermo Pérez Roldán 6–1, 6–3	Stefano Pescosolido	Francisco Roig Renzo Furlan	Andres Võsand Francisco Clavet Fernando Luna Franco Davín
		Germán López Francisco Roig 6–3, 6–2	Pablo Arraya Carlos Costa
September 24	Bogotá Challenger Bogotá, Colombia $50,000 – clay – 32S/16D Singles draw – Doubles draw	Álvaro Jordan 6–3, 6–3	Libor Němeček	Pedro Rebolledo Giorgio Carneade	Felipe Rivera Greg Failla José Daher José Antonio Fernández
		Mauricio Hadad Mario Rincón 7–6, 7–6	Carlos Claverie Greg Failla
	Thessaloniki Challenger Thessaloniki, Greece $50,000 – hard – 32S/16D Singles draw – Doubles draw	Christian Geyer 7–6, 6–3	Henrik Holm	Gianluca Pozzi Lars Koslowski	Scott Patridge Johan Carlsson Shahar Perkiss Neil Borwick
		Gilad Bloom Alexis Hombrecher 6–1, 7–6	Nick Brown Johan Carlsson

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
October 1	Manaus Challenger Manaus, Brazil $50,000 – hard – 32S/16D Singles draw – Doubles draw	Luis Herrera 6–2, 7–5	Jaime Oncins	Shelby Cannon Tobias Svantesson	Cássio Motta Danilo Marcelino José Daher Mario Rincón
		Shelby Cannon Alfonso Mora 7–6, 6–4	Ricardo Acioly Mauro Menezes
	Singapore Challenger Singapore, Singapore $50,000 – hard – 32S/16D Singles draw – Doubles draw	Boris Laustroer 7–6, 6–4	Sander Groen	Neil Borwick Mike Briggs	Tommy Ho Paul Wekesa Bruce Derlin John Letts
		Steve Guy John Letts 6–1, 7–5	Kent Kinnear Mark Keil
October 8	Casablanca Challenger Casablanca, Morocco $50,000 – clay – 32S/16D Singles draw – Doubles draw	Richard Krajicek 7–6, 6–3	Ctislav Doseděl	José Francisco Altur José Luis Aparisi	Tarik Benhabiles Roberto Azar Hans Schwaier Francisco Clavet
		Juan Carlos Báguena Francisco Roig 7–5, 5–7, 6–4	Ctislav Doseděl Richard Krajicek
	Curitiba Challenger Curitiba, Brazil $50,000 – hard – 32S/16D Singles draw – Doubles draw	Pedro Rebolledo 6–1, 7–5	Javier Frana	Cássio Motta Jacco Eltingh	Luis Herrera Jaime Oncins Danilo Marcelino Mario Tabares
		Hendrik Jan Davids Jacco Eltingh 6–4, 3–6, 6–3	César Kist Danilo Marcelino
October 15	Ilhéus Challenger Ilhéus, Brazil $75,000 – hard – 32S/16D Singles draw – Doubles draw	Luis Herrera 6–2, 6–2	Patrick Baur	Jacco Eltingh Danilo Marcelino	Jaime Yzaga Jaime Oncins Eduardo Bengoechea Pedro Rebolledo
		Hendrik Jan Davids Jacco Eltingh 4–6, 6–3, 6–4	Roger Smith Tobias Svantesson
	Ponte Vedra Challenger Ponte Vedra Beach, United States $50,000 – hard – 32S/16D Singles draw – Doubles draw	Tommy Ho 7–6, 6–4	Chris Pridham	Chris Garner Jimmy Brown	Philip Johnson Mark Keil Bruno Orešar Robert Seguso
		Doug Flach Ken Flach 6–3, 2–6, 6–4	Royce Deppe Bret Garnett
October 22	Brest Challenger Brest, France $75,000 – hard (I) – 32S/16D Singles draw – Doubles draw	Cédric Pioline 6–3, 6–4	Richard Krajicek	Thomas Högstedt Gilad Bloom	Ramesh Krishnan Francisco Roig Aki Rahunen Fabrice Santoro
		Ģirts Dzelde Martin Damm 6–4, 6–4	Wayne Ferreira Piet Norval
October 29	Bergen Challenger Bergen, Norway $100,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Alexander Mronz 6–4, 6–4	Jan Gunnarsson	Paul Haarhuis Ctislav Doseděl	Magnus Larsson Alex Antonitsch Eric Jelen Thomas Enqvist
		Jeff Brown Anders Järryd 6–3, 7–6	Charles Beckman Luke Jensen
	Rio de Janeiro Challenger Rio de Janeiro, Brazil $75,000 – clay – 32S/16D Singles draw – Doubles draw	Luiz Mattar 6–3, 3–6, 6–3	Luis Herrera	Nuno Marques Javier Frana	Roger Smith Marcos Górriz Pablo Arraya Bart Wuyts
		Roger Smith Tobias Svantesson 7–5, 6–4	Shelby Cannon Alfonso Mora

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
November 5	No tournaments scheduled.
November 12	São Paulo-3 Challenger São Paulo, Brazil $50,000 – clay – 32S/16D Singles draw – Doubles draw	Jaime Oncins 6–3, 6–3	Francisco Yunis	Gabriel Markus João Cunha e Silva	Daniel Orsanic Javier Frana MaliVai Washington Andrew Sznajder
		Richard Lubner Francisco Montana 6–4, 7–6	Nelson Aerts Danilo Marcelino
	Tasmania Challenger Tasmania, Australia $25,000 – hard – 32S/16D Singles draw – Doubles draw	Simon Youl 7–6, 7–6	Jamie Morgan	Brett Steven Johan Anderson	Jason Cask Carl Limberger Ryan Blake Sandon Stolle
		Brett Custer David Macpherson 6–2, 6–7, 6–4	Brett Steven Sandon Stolle
	The Hague Challenger The Hague, Netherlands $100,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Anders Järryd 6–1, 6–2	Marián Vajda	Javier Sánchez Patrik Kühnen	Magnus Gustafsson Udo Riglewski Jeremy Bates Karel Nováček
		Michiel Schapers Jan Siemerink 6–3, 7–5	Alexander Mronz Andrei Olhovskiy
November 19	No tournaments scheduled.
November 26	Bossonnens Challenger Bossonnens, Switzerland $50,000 – hard (I) – 32S/16D Singles draw – Doubles draw	Cristiano Caratti 6–4, 3–6, 7–6	Michiel Schapers	Markus Rackl Diego Nargiso	Eduardo Masso Roger Smith Cédric Pioline Peter Nyborg
		Michiel Schapers Roger Smith 6–2, 7–6	Henrik Holm Nils Holm
	Munich Challenger Munich, Germany $50,000 – carpet (I) – 32S/16D Singles draw – Doubles draw	Anders Järryd 6–2, 6–4	Richard Krajicek	Markus Zoecke Johan Carlsson	Jan Siemerink Niclas Kroon Martin Střelba Martin Sinner
		Jens Wöhrmann Markus Zoecke 6–4, 6–3	Dimitri Poliakov Slobodan Vojinovic

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
December 3	Guam Challenger Guam, Guam $25,000 – hard – 32S/16D Singles draw – Doubles draw	Jamie Morgan 6–2, 7–6	Chuck Adams	Glenn Michibata Steve DeVries	Francisco Montana Andrew Castle Matt Anger Mike Briggs
		Steve DeVries Ted Scherman 6–1, 3–6, 7–6	Matt Anger Andrew Castle
December 10	No tournaments scheduled.
December 17	Hong Kong Challenger Hong Kong $25,000 – hard – 32S/16D Singles draw – Doubles draw	Christian Saceanu 6–4, 6–1	Felix Barrientos	Gianluca Pozzi Jamie Morgan	Chuck Adams Christian Geyer Bruce Steel David Engel
		Neil Borwick Paul Wekesa 6–2, 6–2	Christian Geyer Christian Saceanu

These tables present the number of singles (S) and doubles (D) titles won by each player and each nation during the season, within all the tournament categories of the 1990 ATP Challenger Series. The players/nations are sorted by: 1) total number of titles (a doubles title won by two players representing the same nation counts as only one win for the nation); 2) a singles > doubles hierarchy; 3) alphabetical order (by family names for players).

Total	Player	S	D
4	Christian Miniussi (ARG)	2	2
4	Jaime Oncins (BRA)	2	2
4	Francisco Roig (ESP)	1	3
3	Pedro Rebolledo (CHI)	3	0
3	Christian Saceanu (FRG)	3	0
3	João Cunha e Silva (POR)	2	1
3	Anders Järryd (SWE)	2	1
3	Guillaume Raoux (FRA)	2	1
3	Horst Skoff (AUT)	2	1
3	Olivier Delaître (FRA)	1	2
3	Steve DeVries (USA)	1	2
3	Henrik Holm (SWE)	1	2
3	Dimitri Poliakov (URS)	1	2
3	Tomáš Anzari (TCH)	0	3
3	Neil Borwick (AUS)	0	3
3	Hendrik Jan Davids (NED)	0	3
3	David Lewis (NZL)	0	3
3	David Rikl (TCH)	0	3
2	Cristiano Caratti (ITA)	2	0
2	Luis Herrera (MEX)	2	0
2	Richard Krajicek (NED)	2	0
2	Thomas Muster (AUT)	2	0
2	Martin Sinner (FRG)	2	0
2	Jeremy Bates (GBR)	1	1
2	Carlos Costa (ESP)	1	1
2	Ctislav Doseděl (TCH)	1	1
2	Rodolphe Gilbert (FRA)	1	1
2	Marcos Górriz (ESP)	1	1
2	Mark Keil (USA)	1	1
2	Mark Koevermans (NED)	1	1
2	Cássio Motta (BRA)	1	1
2	Nduka Odizor (NGR)	1	1
2	Ricki Osterthun (FRG)	1	1
2	Jeff Brown (USA)	0	2
2	Brett Custer (AUS)	0	2
2	Jacco Eltingh (NED)	0	2
2	Doug Flach (USA)	0	2
2	Ken Flach (USA)	0	2
2	Javier Frana (ARG)	0	2
2	Eduardo Masso (BEL)	0	2
2	Andrei Olhovskiy (URS)	0	2
2	Scott Patridge (USA)	0	2
2	Michiel Schapers (NED)	0	2
2	Jan Siemerink (NED)	0	2
2	Roger Smith (BAH)	0	2
2	Branislav Stankovič (TCH)	0	2
2	Richard Vogel (TCH)	0	2
2	Paul Wekesa (KEN)	0	2
1	Christer Allgårdh (SWE)	1	0
1	Roberto Argüello (ARG)	1	0
1	Marcelo Filippini (URU)	1	0
1	Renzo Furlan (ITA)	1	0
1	Christian Geyer (FRG)	1	0
1	Tommy Ho (USA)	1	0
1	Álvaro Jordan (COL)	1	0
1	Ramesh Krishnan (IND)	1	0
1	Magnus Larsson (SWE)	1	0
1	Boris Laustroer (FRG)	1	0
1	Fernando Luna (ESP)	1	0
1	Francisco Maciel (MEX)	1	0
1	Luiz Mattar (BRA)	1	0
1	Jamie Morgan (AUS)	1	0
1	Alexander Mronz (FRG)	1	0
1	Gary Muller (RSA)	1	0
1	Miguel Nido (PUR)	1	0
1	Bruno Orešar (YUG)	1	0
1	Guillermo Pérez Roldán (ARG)	1	0
1	Cédric Pioline (FRA)	1	0
1	Fabrice Santoro (FRA)	1	0
1	Bryan Shelton (USA)	1	0
1	Milan Šrejber (TCH)	1	0
1	Brett Steven (NZL)	1	0
1	Jeff Tarango (USA)	1	0
1	Thierry Tulasne (FRA)	1	0
1	Raviv Weidenfeld (ISR)	1	0
1	Simon Youl (AUS)	1	0
1	Nelson Aerts (BRA)	0	1
1	Pablo Albano (ARG)	0	1
1	Zeeshan Ali (IND)	0	1
1	Eric Amend (USA)	0	1
1	Johan Anderson (AUS)	0	1
1	José Luis Aparisi (ESP)	0	1
1	Juan Carlos Báguena (ESP)	0	1
1	Mansour Bahrami (IRN)	0	1
1	Peter Ballauff (FRG)	0	1
1	Marius Barnard (RSA)	0	1
1	Eduardo Bengoechea (ARG)	0	1
1	Gilad Bloom (ISR)	0	1
1	Karsten Braasch (FRG)	0	1
1	Cristian Brandi (ITA)	0	1
1	Mike Briggs (USA)	0	1
1	Nick Brown (GBR)	0	1
1	Shelby Cannon (USA)	0	1
1	Jonathan Canter (USA)	0	1
1	Johan Carlsson (SWE)	0	1
1	Andrew Castle (GBR)	0	1
1	Massimo Cierro (ITA)	0	1
1	Josef Čihák (TCH)	0	1
1	Jose Clavet (ESP)	0	1
1	Simone Colombo (ITA)	0	1
1	José Daher (BRA)	0	1
1	Martin Damm (TCH)	0	1
1	Horacio de la Peña (ARG)	0	1
1	Bruce Derlin (NZL)	0	1
1	Peter Doohan (AUS)	0	1
1	Ģirts Dzelde (URS)	0	1
1	Wayne Ferreira (RSA)	0	1
1	Nick Fulwood (GBR)	0	1
1	Patrick Galbraith (USA)	0	1
1	Steve Guy (NZL)	0	1
1	Mauricio Hadad (COL)	0	1
1	David Harkness (USA)	0	1
1	Brent Haygarth (RSA)	0	1
1	Nils Holm (SWE)	0	1
1	Alexis Hombrecher (USA)	0	1
1	Marcelo Ingaramo (ARG)	0	1
1	Ville Jansson (SWE)	0	1
1	Ivan Kley (BRA)	0	1
1	Leonardo Lavalle (MEX)	0	1
1	John Letts (USA)	0	1
1	Germán López (ESP)	0	1
1	Jorge Lozano (MEX)	0	1
1	Richard Lubner (RSA)	0	1
1	Gustavo Luza (ARG)	0	1
1	David Macpherson (AUS)	0	1
1	Scott Melville (USA)	0	1
1	Tom Mercer (USA)	0	1
1	Francisco Montana (USA)	0	1
1	Alfonso Mora (VEN)	0	1
1	Federico Mordegan (ITA)	0	1
1	Piet Norval (RSA)	0	1
1	Peter Nyborg (SWE)	0	1
1	Menno Oosting (NED)	0	1
1	Olli Rahnasto (FIN)	0	1
1	Mario Rincón (COL)	0	1
1	Fernando Roese (BRA)	0	1
1	Ted Scherman (USA)	0	1
1	Vicente Solves (ESP)	0	1
1	Cyril Suk (TCH)	0	1
1	Tobias Svantesson (SWE)	0	1
1	Andrew Sznajder (CAN)	0	1
1	Lars-Anders Wahlgren (SWE)	0	1
1	Jens Wöhrmann (FRG)	0	1
1	Markus Zoecke (FRG)	0	1