1968
Aug 1 Cachorro Amaya Managua, Nicaragua LT 1
Nov 18 Israel Medina Managua, Nicaragua W 4
Dec 14 Miguel "Alacran" Espinoza Managua, Nicaragua W 4
1969
Jan 23 Burrito Martinez Managua, Nicaragua KO 3
Apr 26 Miguel "Alacran" Espinoza Managua, Nicaragua L 6
1970
Jul 29 Carlos Huete Managua, Nicaragua W 8
Aug 12 Ricardo Donoso Managua, Nicaragua KO 2
Sep 7 Marcelino Beckles Managua, Nicaragua TK 8
Oct 17 Mario Bojorge Managua, Nicaragua KO 3
Nov 14 Jose Urbina Managua, Nicaragua KO 1
Dec 5 Julio Morales Managua, Nicaragua KO 3
Dec 19 Armando Figueroa Managua, Nicaragua TK 1
1971
Feb 12 Tony Quiroz Managua, Nicaragua KO 6
Mar 13 Julio "Raton" Hernandez Managua, Nicaragua W 10
Apr 17 Julio "Raton" Hernandez Managua, Nicaragua W 10
May 1 Mauricio Buitrago Managua, Nicaragua KO 7
Jun 5 Kid Chapula Managua, Nicaragua KO 1
Jun 26 Marcial Loyola Managua, Nicaragua TK 2
Jul 17 Kid Clay Managua, Nicaragua TK 5
Aug 14 Catalino Alvarado Managua, Nicaragua KO 1
Sep 4 Rey Mendoza Managua, Nicaragua TK 4
Oct 2 Kid Clay Managua, Nicaragua W 10
Nov 18 Vicente Worrel Managua, Nicaragua KO 2
1972
Feb 8 Guillermo Barrera Managua, Nicaragua KO 1
Apr 11 Rafael "Tanquecito" Gonzalez Managua, Nicaragua KO 2
Jun 22 Jorge Reyes Managua, Nicaragua LT 6
Aug 16 Fernando Fernandez Managua, Nicaragua KO 1
Sep 23 Jorge Benitez Managua, Nicaragua KO 1
Oct 22 Memo Barrera Managua, Nicaragua KO 2
Nov 17 Memo Ortiz Managua, Nicaragua KO 2
Dec 12 Rafael "Tanquecito" Gonzalez Managua, Nicaragua TK 7
1973
Mar 30 Fernando Fernandez Managua, Nicaragua TK 2
Apr 22 Magallo Lozada Managua, Nicaragua W 10
May 26 Kid Pascualito Managua, Nicaragua KO 3
Jun 30 Octavio Gomez Managua, Nicaragua KO 2
Aug 25 Nacho Lomeli Managua, Nicaragua KO 1
Oct 17 Sigfredo Rodriguez Managua, Nicaragua TK 9
Nov 27 Jose Legra Managua, Nicaragua KO 1
1974
Jan 8 Raul Martinez Mora Managua, Nicaragua KO 1
Feb 16 Ernesto Marcel Panama City, Panama L 15
-WBA Featherweight Championship of the World
Apr 27 Enrique Garcia Managua, Nicaragua KO 3
May 20 Art Hafey Managua, Nicaragua KO 5
Aug 29 Oscar Aparico Managua, Nicaragua W 12
-Featherweight Championship of Central America
Sep 21 Otoniel Martinez Managua, Nicaragua KO 1
Nov 23 Ruben Olivares Inglewood, Ca KO 13
-WBA Featherweight Championship of the World
1975
Feb 8 Oscar "Chico" Apricio San Salvador, El Salvador W 10
Mar 15 Lionel Hernandez Caracas, Venezuela TK 8
-WBA Featherweight Championship of the World
May 31 Rigoberto Riasco Managua, Nicaragua TK 2
-WBA Featherweight Championship of the World
Jul 18 Rosalio Muro San Francisco,Ca TK 2
Oct 12 Royal Kobayashi Tokyo, Japan KO 5
-WBA Featherweight Championship of the World
Dec 20 Saul Montana Managua, Nicaragua KO 3
1976
Feb 1 Jose Torres Mexicali, Mexico W 10
Apr 10 Modesto Concepcion Managua, Nicaragua KO 2
Jun 19 Salvatore Torres Inglewood, Ca KO 3
-WBA Featherweight Championship of the World
1977
Feb 19 Godfrey Stevens Managua, Nicaragua KO 2
May 14 Alberto Herrera Managua, Nicaragua KO 1
Jun 20 -Arguello relinquished the WBA Featherweight Championship of the World
Jun 22 Ezequiel "Cocoa" Sanchez New York, NY TK 4
Aug 3 Jose Fernandez New York, NY TK 1
Aug 27 Benjamin Ortiz San Juan, Puerto Rico W 10
Sep 29 Jerome Artis New York, NY TK 2
Dec 18 Enrique Solis Managua, Nicaragua KO 5
1978
Jan 28 Alfredo Escalera San Juan, Puerto Rico TK 13
-WBC Super Featherweight Championship of the World
Mar 25 Mario Mendez Las Vegas, Nv TK 3
Apr 29 Rey Tam Inglewood, Ca TK 5
-WBC Super Featherweight Championship of the World
Jun 3 Diego Alcala San Juan, Puerto Rico KO 1
-WBC Super Featherweight Championship of the World
Jul 26 Vilomar Fernandez New York, NY L 10
Nov 10 Arturo Leon Las Vegas, Nv W 15
-WBC Super Featherweight Championship of the World
1979
Feb 4 Alfredo Escalera Rimini, Italy KO 13
-WBC Super Featherweight Championship of the World
Jul 8 Rafael "Bazooka" Limon New York, NY TK 11
-WBC Super Featherweight Championship of the World
Nov 16 Bobby Chacon Inglewood, Ca TK 7
-WBC Super Featherweight Championship of the World
1980
Jan 20 Ruben Castillo Tucson, Az TK 11
-WBC Super Featherweight Championship of the World
Mar 31 Gerald Hayes Las Vegas, Nv W 10
Apr 27 Rolando Navarrete San Juan, Puerto Rico TK 5
-WBC Super Featherweight Championship of the World
Aug 9 Cornelius Boza-Edwards Atlantic City, NJ TK 8
-WBC Super Featherweight Championship of the World
-Arguello relinquished the WBC Super Featherweight Championship of the World
Nov 14 Jose Luis Ramirez Miami, Fl W 10
1981
Feb 7 Roberto Vasquez Miami, Fl TK 3
Jun 20 Jim Watt London, England W 15
-WBC Lightweight Championship of the World
Oct 3 Ray Mancini Atlantic City, NJ TK 14
-WBC Lightweight Championship of the World
Nov 21 Roberto Elizondo Las Vegas, Nv KO 7
-WBC Lightweight Championship of the World
1982
Feb 13 James "Bubba" Busceme Beaumont, Tx TK 6
-WBC Lightweight Championship of the World
May 22 Andrew Ganigan Las Vegas, Nv KO 5
-WBC Lightweight Championship of the World
Jul 31 Kevin Rooney Atlantic City, NJ KO 2
Nov 12 Aaron Pryor Miami, Fl LT 14
-WBA Light Welterweight Championship of the World
1983
Feb 15 -Arguello relinquished the WBC Lightweight Championship of the World
Feb 26 Vilomar Fernandez San Antonio, Tx W 10
Apr 24 Claude Noel Atlantic City, NJ TK 3
Sep 9 Aaron Pryor Las Vegas, Nv LK 10
-WBA Light Welterweight Championship of the World
1985
Oct 25 Pat Jefferson Anchorage, Ak TK 5
1986
Feb 9 Billy Costello Reno, Nv TK 4
-Some sources report "Las Vegas, Nv"
1994
Aug 27 Jorge Palomares Miami Beach, Fl W 10
1995
Jan 21 Scott Walker Las Vegas, Nv L 10
