*** AMATEUR BOUTS ***
1960
Brian Van Niekerk Rome, Italy W 3
Pedro Votta Rome, Italy W 3
Souleymane Diallo Rome, Italy W 3
William Fisher Rome, Italy W 3
Wilbert McClure Rome, Italy L 3
-The previous 5 bouts were part of the Olympic Games
Middleweight Competition; Bossi won the Silver Medal
*** PROFESSIONAL BOUTS ***
1961
Mar 4 Isidoro Princi Milan, Italy WF 3
Mar 18 Henri Marchandeau Milan, Italy W 6
Mar 31 Dante Madella Ancona, Italy W 6
May 21 Germano Cavalieri Trevise, Italy W 6
1962
May 4 Marcello Verziera Rome, Italy W 6
Jul 27 Carlo Sala Rome, Italy KO 5
1963
Apr 19 Bruno Pomaro Pavia, Italy KO 4
May 24 Michel Francois Milan, Italy W 6
Sep 13 Johnny Angel Rome, Italy LK 5
Nov 4 Vicente Tomas Moktar Ferrara, Italy W 8
Nov 22 Mirko Rossi Milan, Italy KO 6
Dec 5 Jaconias Amorin Milan, Italy W 8
Dec 26 Alberto Alsinet Milan, Italy KO 2
1964
Feb 7 Vicente Ferrando Milan, Italy W 8
Feb 28 Sani Armstrong Milan, Italy W 8
Apr 30 Julio Rocha Milan, Italy W 8
Nov 4 Vicente Tomas Moktar Ferrara, Italy W 8
Nov 12 Giuliano Nervino Milan, Italy W 8
Nov 26 Fred Galiana Barcelona, Spain TK 10
1965
Feb 4 Andres Navarro Moreno Barcelona, Spain W 8
Feb 26 Luciano Piazza Milan, Italy W 8
Jun 18 Alfredo Parmeggiani Milan, Italy W 10
Oct 5 Domenico Tiberia Naples, Italy W 12
-Welterweight Championship of Italy
1966
Mar 11 Mario Landolfi Rome, Italy KO 8
Apr 21 Angel Robinson Garcia Barcelona, Spain D 10
Aug 18 James Shelton San Remo, Italy W 8
Sep 14 Eduardo Batista Arezzo, Italy KO 5
Nov 24 Teddy Meho Barcelona, Spain D 8
1967
Jan 8 Domenico Tiberia Aprilia, Italy W 12
-Welterweight Championship of Italy
Feb 24 Assane Fakyh Turin, Italy W 8
May 17 Jean Josselin San Remo, Italy W 15
-EBU Welterweight Championship of Europe
Jul 14 Angel Robinson Garcia Rome, Italy TK 5
Aug 16 Johnny Cooke San Remo, Italy TK 12
-EBU Welterweight Championship of Europe
Oct 7 Willie Ludick Johannesburg, Transvaal, SAfrica L 15
Nov 25 Willie Ludick Johannesburg, Transvaal, SAfrica L 15
1968
Jan 27 Lennox Beckles Milan, Italy W 10
May 3 Jean Josselin Rome, Italy W 15
-EBU Welterweight Championship of Europe
May 26 Abderamane Faradji Milan, Italy W 8
Aug 14 Edwin "Fighting" Mack Lignano-Sabbiadoro, Italy LK 10
-EBU Welterweight Championship of Europe
1969
Apr 3 Klaus Klein Milan, Italy W 8
May 9 Ferdinand Ahumibe Milan, Italy W 8
Jun 20 Edwin "Fighting" Mack Milan, Italy W 10
Jul 11 John Tiger Milan, Italy W 8
Oct 31 Freddie Little Rome, Italy TL 3
1970
Mar 6 Guy Vercoutter Milan, Italy W 10
Apr 9 Johann Orsolics Vienna, Austria L 15
-EBU Welterweight Championship of Europe
Jul 9 Freddie Little Monza, Italy W 15
-WBC Light Middleweight Championship of the World;
WBA Light Middleweight Championship of the World
Oct 14 Aldo Battistutta Udine, Italy KO 5
Nov 14 Pierre Fourie Johannesburg, Transvaal, SAfrica L 10
1971
Apr 29 Jose Hernandez Madrid, Spain D 15
-WBC Light Middleweight Championship of the World;
WBA Light Middleweight Championship of the World
Oct 31 Koichi Wajima Tokyo, Japan L 15
-WBC Light Middleweight Championship of the World;
WBA Light Middleweight Championship of the World