The ATP Challenger Series is the second-tier tour for professional tennis organised by the Association of Tennis Professionals (ATP). The 1980 ATP Challenger Series calendar comprises 24 tournaments, with prize money ranging from $25,000 up to $50,000.^[1]

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
March 3	Kaduna Challenger Kaduna, Nigeria Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Chris Mayotte 1–6, 6–3, 6–3	John Feaver	Roland Steigler Mark Turpin	Filip Krajcik Harry Fritz Toby Crabel Larry Stefanki
		Chris Mayotte Larry Stefanki 6–4, 3–6, 6–2	Robin Drysdale John Feaver
March 10	No tournaments scheduled.
March 17	ATP Linz Linz, Austria Hard (i) – $25,000 – 32S/16D Singles draw – Doubles draw	Tony Graham 3–6, 7–6, 6–4	Onny Parun	Andreas Maurer John Feaver	Bruce Foxworth Roland Steigler Chris Mayotte Hans Kary
		Tony Graham Belus Prajoux 6–2, 4–6, 7–5	Robert Reininger Helmar Stiegler
March 24	No tournaments scheduled.
March 31	San Luis Potosí Challenger San Luis Potosí, Mexico Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Adolfo González 6–4, 6–4	Guillermo Stevens	Rick Fagel Ramiro Benavides	Joaquín Loyo Mayo Larry Loeb Filip Krajcik Brad Guan
		Mike Barr Réjean Genois 6–4, 6–4	Ramiro Benavides Gabriel Urpí
	Shimizu Challenger Shimizu, Japan Hard – $25,000 – 32S/16D Singles draw – Doubles draw	Markus Günthardt 2–6, 6–4, 6–3	Cliff Letcher	Tsuyoshi Fukui John Marks	Chris Kachel Jun Kamiwazumi Robert Bettauer Wayne Pascoe
		Syd Ball Cliff Letcher 6–7, 6–3, 6–2	Chris Kachel John Marks

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
April 7	Maebashi Challenger Maebashi, Japan Hard – $25,000 – 32S/16D Singles draw – Doubles draw	Greg Whitecross 2–6, 6–4, 7–6	Craig A. Miller	Markus Günthardt John Fitzgerald	Mike Shore Beeyong Sison Peter Holl Jun Kuki
		Chris Kachel John Marks 6–4, 7–6	Syd Ball Cliff Letcher
April 14	No tournaments scheduled.
April 21	No tournaments scheduled.
April 28	Toyota Challenger Toyota, Japan Hard – $33,000 – 32S/16D Singles draw – Doubles draw	Russell Simpson 6–4, 6–4	Brad Drewett	Chris Johnstone John Fitzgerald	Jun Kuki Cliff Letcher Tsuyoshi Fukui Jorge Andrew
		Syd Ball Cliff Letcher 6–3, 6–4	Chris Kachel Russell Simpson
	Parioli Challenger Parioli, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Corrado Barazzutti 1–6, 6–3, 6–2	Dominique Bedel	Onny Parun Paolo Bertolucci	Michael Grant Terry Rocavert Hans Kary Jairo Velasco Sr.
		Klaus Eberhard Ulrich Marten 3–6, 6–3, 7–5	Karl Meiler Werner Zirngibl

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
May 5	Galatina Challenger Galatina, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Gilles Moretton 6–1, 3–6, 6–2	Stefan Simonsson	Werner Zirngibl Dominique Bedel	Christophe Freyss Ramiro Benavides Alejandro Pierola Gabriel Urpí
		Syd Ball Chris Kachel 6–2, 6–1	Tim Garcia Michael Grant
May 12	No tournaments scheduled.
May 19	No tournaments scheduled.
May 26	No tournaments scheduled.

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
June 2	Kent Championships Beckenham, Great Britain Grass – $25,000 – 64S/64D Singles draw – Doubles draw	Onny Parun 6–4, 4–6, 9–7	Sandy Mayer	Paul Kronk Leo Palin	Tom Gorman Tony Graham Anand Amritraj Sashi Menon
		John Austin Van Winitsky W/O	Chris Johnstone Greg Whitecross
	Cuneo Challenger Cuneo, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Ricardo Cano 7–5, 6–2	Mario Martinez	Gabriel Urpí Christophe Casa	Carlos Gattiker Werner Zirngibl Dominique Bedel Ricardo Ycaza
		Ricardo Cano Carlos Gattiker 4–6, 7–6, 6–2	Mario Martinez Pedro Rebolledo
June 9	No tournaments scheduled.
June 16	No tournaments scheduled.
June 23	No tournaments scheduled.
June 2	Lugo Challenger Lugo, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Tony Giammalva 6–3, 6–4, 6–4	Gustavo Guerrero	Fernando Dalla Fontana Ricardo Cano	Eduardo Bengoechea Jean-François Caujolle Carlos Kirmayr Gianni Ocleppo
		John Fitzgerald Cliff Letcher 6–1, 6–3	Ricardo Cano Carlos Kirmayr

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
August 4	Zell am See Challenger Zell am See, Austria Clay – $50,000 – 32S/16D Singles draw – Doubles draw	Peter McNamara 6–4, 6–1, 7–5	Chris Lewis	Heinz Günthardt Dominique Bedel	Haroon Ismail Onny Parun Pavel Složil Wayne Hampson
		Jiří Hřebec Pavel Hutka 3–6, 7–5, 7–6, 6–2	Wayne Pascoe Dave Siegler
August 11	Royan Challenger Royan, France Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Christophe Casa 6–7, 6–4, 6–1, 6–0	Dominique Bedel	Bernard Fritz Haroon Ismail	Dave Siegler Wayne Hampson Jan Gunnarsson Stefan Svensson
		Dave Siegler Robbie Venter 6–4, 6–4	Jan Gunnarsson Stefan Svensson
August 18	Le Touquet Challenger Le Touquet, France Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Christophe Casa 6–4, 5–7, 6–4, 6–4, 6–2	Jérôme Vanier	Éric Deblicker Ángel Giménez	Kjell Johansson José López-Maeso Hans Simonsson Hervé Gauvain
		Dave Siegler Robbie Venter 7–6, 4–6, 6–3	Hans Simonsson Tenny Svensson
	Rio de Janeiro Open Rio de Janeiro, Brazil Clay – $25,000 – 48S/24D Singles draw – Doubles draw	Carlos Kirmayr 6–4, 6–0	Carlos Landó	Marcos Hocevar Charles Strode	Carlos Gattiker Eduardo Bengoechea Fernando Dalla Fontana Ricardo Cano
		Ricardo Cano Cássio Motta 6–4, 6–4	Alejandro Ganzábal Gustavo Guerrero
August 25	Brussels Challenger Brussels, Belgium Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Kjell Johansson 6–3, 6–4	Georges Goven	Eddie Edwards Sivagnanam Suresh	Christophe Freyss Ramiro Benavides Hans Simonsson Chris Johnstone
		Eddie Edwards Craig Edwards 6–1, 6–2	Doug Adler Chris Johnstone
	Porto Alegre Challenger Porto Alegre, Brazil Clay – $25,000 – 48S/24D Singles draw – Doubles draw	Thomaz Koch 6–7, 6–2, 7–6, 7–5	Carlos Kirmayr	Belus Prajoux Ricardo Cano	Gustavo Guerrero Alejandro Gattiker José Luis Damiani Charles Strode
		Jorge Andrew Markus Günthardt 6–3, 6–1	Paulo Cleto Carlos Kirmayr

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
September 1	Curitiba Challenger Curitiba, Brazil Clay – $25,000 – 64S/32D Singles draw – Doubles draw	Gustavo Guerrero 7–6, 6–3	Marcos Hocevar	Charles Strode João Soares	Givaldo Barbosa Morris Strode Cary Stansbury José Luis Damiani
		Jorge Andrew Markus Günthardt 4–6, 6–3, 7–6	Kevin Harris Craig Wittus
	Turin Challenger Turin, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Robbie Venter 6–2, 6–1	Miguel Mir	Maurizio Bonaiti Alejandro Pierola	Hervé Gauvain Kjell Johansson Frank Punčec Patrick Proisy
		Jai DiLouie Wayne Hampson 6–3, 6–4	Dave Siegler Robbie Venter
September 8	Campinas Challenger Campinas, Brazil Clay – $25,000 – 64S/32D Singles draw – Doubles draw	Ricardo Cano 6–3, 4–6, 6–2	José Luis Damiani	Guillermo Aubone Ney Keller	Gustavo Guerrero Júlio Góes João Soares Marcos Hocevar
		Marcos Hocevar João Soares 7–5, 6–1	Ney Keller Cássio Motta
September 15	Cosenza Challenger Cosenza, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Ricardo Ycaza 6–1, 6–4	Alejandro Pierola	Diego Pérez Ramiro Benavides	Chris Mayotte Anders Järryd Marko Ostoja Jai DiLouie
		Ernie Ewert Brad Guan 7–6, 6–3	Ismail El Shafei Ricardo Ycaza
September 22	International Tournament of Messina Messina, Italy Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Anders Järryd 6–4, 5–7, 6–2	Chris Mayotte	Ezio Di Matteo Brad Guan	Franco Merlone Stefan Svensson Ernie Ewert Massimo Grassotti
		Ernie Ewert Brad Guan 6–3, 6–4	Gianni Marchetti Enzo Vattuone
September 29	Mexico City Challenger Mexico City, Mexico Hard – $25,000 – 32S/16D Singles draw – Doubles draw	Jorge Andrew 6–3, 6–4	Scott McCain	John Hayes Emilio Montaño	Glen Holroyd Anand Amritraj Ian Harris Steve Docherty
		Scott McCain Larry Stefanki 6–3, 6–3	Glen Holroyd Craig Wittus

Week of	Tournament	Champions	Runners-up	Semifinalists	Quarterfinalists
December 1	Buenos Aires Challenger Buenos Aires, Argentina Clay – $25,000 – 32S/16D Singles draw – Doubles draw	Eduardo Bengoechea 7–6, 6–2	Carlos Castellan	Ricardo Cano Diego Pérez	Fernando Dalla Fontana Enrique Caviglia Gustavo Tiberti Charles Strode
		Ricardo Cano Roberto Carruthers 6–2, 6–4	Carlos Gattiker Alejandro Gattiker

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 1980 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
5	Ricardo Cano (ARG)	2	3
3	Jorge Andrew (VEN)	1	2
3	Markus Günthardt (SUI)	1	2
3	Robbie Venter (RSA)	1	2
3	Syd Ball (AUS)	0	3
3	Cliff Letcher (AUS)	0	3
2	Christophe Casa (FRA)	2	0
2	Tony Graham (USA)	1	1
2	Chris Mayotte (USA)	1	1
2	Ernie Ewert (AUS)	0	2
2	Brad Guan (AUS)	0	2
2	Chris Kachel (AUS)	0	2
2	Dave Siegler (USA)	0	2
2	Larry Stefanki (USA)	0	2
1	Corrado Barazzutti (ITA)	1	0
1	Eduardo Bengoechea (ARG)	1	0
1	Tony Giammalva (USA)	1	0
1	Adolfo González (MEX)	1	0
1	Gustavo Guerrero (ARG)	1	0
1	Anders Järryd (SWE)	1	0
1	Kjell Johansson (SWE)	1	0
1	Carlos Kirmayr (BRA)	1	0
1	Thomaz Koch (BRA)	1	0
1	Peter McNamara (AUS)	1	0
1	Gilles Moretton (FRA)	1	0
1	Onny Parun (NZL)	1	0
1	Russel Simpson (NZL)	1	0
1	Greg Whitecross (AUS)	1	0
1	Ricardo Ycaza (ECU)	1	0
1	John Austin (USA)	0	1
1	Mike Barr (USA)	0	1
1	Roberto Carruthers (ARG)	0	1
1	Jai DiLouie (USA)	0	1
1	Klaus Eberhard (FRG)	0	1
1	Eddie Edwards (RSA)	0	1
1	Craig Edwards (USA)	0	1
1	John Fitzgerald (AUS)	0	1
1	Carlos Gattiker (ARG)	0	1
1	Réjean Génois (CAN)	0	1
1	Wayne Hampson (AUS)	0	1
1	Marcos Hocevar (BRA)	0	1
1	Jiří Hřebec (TCH)	0	1
1	Pavel Hutka (TCH)	0	1
1	John Marks (AUS)	0	1
1	Ulrich Marten (FRG)	0	1
1	Scott McCain (USA)	0	1
1	Cássio Motta (BRA)	0	1
1	Belus Prajoux (CHI)	0	1
1	João Soares (BRA)	0	1
1	Van Winitsky (USA)	0	1

Total	Nation	S	D
12	United States (USA)	3	9
10	Australia (AUS)	2	8
7	Argentina (ARG)	4	3
4	Brazil (BRA)	2	2
4	South Africa (RSA)	1	3
3	France (FRA)	3	0
3	Switzerland (SUI)	1	2
3	Venezuela (VEN)	1	2
2	New Zealand (NZL)	2	0
2	Sweden (SWE)	2	0
1	Ecuador (ECU)	1	0
1	Italy (ITA)	1	0
1	Mexico (MEX)	1	0
1	Canada (CAN)	0	1
1	Chile (CHI)	0	1
1	Czechoslovakia (TCH)	0	1
1	West Germany (FRG)	0	1

• 1980 Grand Prix
• Association of Tennis Professionals
• International Tennis Federation

• Official ATP World Tour Website: Results Archive
• ITF Tennis: Tournament Search Archived 2010-02-12 at the Wayback Machine