Career
1964
Defeated Misael Vilugron (Chile) 3-2
Defeated Sikiru Alimi (Nigeria) 5-0
Defeated Kichijiro Hamada (Japan) 5-0
Defeated Silvano Bertini (Italy) 3-2
Defeated Ričardas Tamulis (Soviet Union) 4-1
His biggest success was at the Olympic games. In Rome, in 1960, he earned a bronze medal in light welterweight. In the quarterfinal he overcame the titleholder Vladimir Jengibariana from the Union of the Soviet Socialist Republics. He was unable to take part in the semi-final fight because of a minor injury.
In Mexico, at the 1968 games, he lost in first round in light middleweight against American Armando Munizem.
Later he became a professional boxer, competing for the World Championship in light middleweight four times. Kasprzyk started once in the European Championship.
He represented Poland 9 times, winning 6, drawing 1 and losing 2 times. In his boxing career he fought 270 times in total, winning 232, drawing 10, and losing 28.
Between 1961-1964 Kasprzyk was disqualified (initially lifelong, then the punishment was eased) for being convicted for participation in a fight.
This part of his biography was made into a movie called, "Boxer", directed by Julian Dziedzina, and based on a script by Bogdan Tomaszewski and Jerzy Suszko (1966). Daniel Olbrychski played in the main role. He was an active sportsman between 1955-1976 for clubs like Sparta Ziębice, Nysa Kłodzko, and in time of his biggest success he represented BBTS Bielsko-Biała, as well as Gornik Wesol and Gornik PszóWest