| Year | Event | Status | Participants | NOCs | 
| 1904 | Welterweight (≤145 pounds), Men | Olympic | 4 | 1 | 
| 1920 | Welterweight (≤147 pounds), Men | Olympic | 18 | 11 | 
| 1924 | Welterweight (≤147 pounds), Men | Olympic | 29 | 18 | 
| 1928 | Welterweight (≤147 pounds), Men | Olympic | 22 | 22 | 
| 1932 | Welterweight (≤147 pounds), Men | Olympic | 16 | 16 | 
| 1936 | Welterweight (≤147 pounds), Men | Olympic | 24 | 24 | 
| 1948 | Welterweight (≤67 kilograms), Men | Olympic | 26 | 26 | 
| 1952 | Welterweight (≤67 kilograms), Men | Olympic | 29 | 29 | 
| 1956 | Welterweight (≤67 kilograms), Men | Olympic | 16 | 16 | 
| 1960 | Welterweight (≤67 kilograms), Men | Olympic | 33 | 33 | 
| 1964 | Welterweight (≤67 kilograms), Men | Olympic | 30 | 30 | 
| 1968 | Welterweight (≤67 kilograms), Men | Olympic | 33 | 33 | 
| 1972 | Welterweight (≤67 kilograms), Men | Olympic | 37 | 37 | 
| 1976 | Welterweight (≤67 kilograms), Men | Olympic | 31 | 31 | 
| 1980 | Welterweight (≤67 kilograms), Men | Olympic | 29 | 29 | 
| 1984 | Welterweight (≤67 kilograms), Men | Olympic | 36 | 36 | 
| 1988 | Welterweight (≤67 kilograms), Men | Olympic | 44 | 44 | 
| 1992 | Welterweight (≤67 kilograms), Men | Olympic | 30 | 30 | 
| 1996 | Welterweight (≤67 kilograms), Men | Olympic | 32 | 32 | 
| 2000 | Welterweight (≤67 kilograms), Men | Olympic | 27 | 27 | 
| 2004 | Welterweight (≤69 kilograms), Men | Olympic | 27 | 27 | 
| 2008 | Welterweight (≤69 kilograms), Men | Olympic | 29 | 29 | 
| 2012 | Welterweight (≤69 kilograms), Men | Olympic | 28 | 28 | 
| 2016 | Welterweight (≤69 kilograms), Men | Olympic | 28 | 28 | 
| 2020 | Welterweight (63-69 kilograms), Men | Olympic | 23 | 23 |