| Year |
Event |
Status |
Participants |
NOCs |
| 1956 |
20 kilometres Race Walk, Men |
Olympic |
21 |
10 |
| 1960 |
20 kilometres Race Walk, Men |
Olympic |
36 |
18 |
| 1964 |
20 kilometres Race Walk, Men |
Olympic |
30 |
15 |
| 1968 |
20 kilometres Race Walk, Men |
Olympic |
34 |
20 |
| 1972 |
20 kilometres Race Walk, Men |
Olympic |
24 |
12 |
| 1976 |
20 kilometres Race Walk, Men |
Olympic |
38 |
21 |
| 1980 |
20 kilometres Race Walk, Men |
Olympic |
34 |
20 |
| 1984 |
20 kilometres Race Walk, Men |
Olympic |
38 |
22 |
| 1988 |
20 kilometres Race Walk, Men |
Olympic |
53 |
28 |
| 1992 |
20 kilometres Race Walk, Men |
Olympic |
42 |
23 |
| 1996 |
20 kilometres Race Walk, Men |
Olympic |
60 |
33 |
| 2000 |
20 kilometres Race Walk, Men |
Olympic |
47 |
28 |
| 2004 |
20 kilometres Race Walk, Men |
Olympic |
48 |
28 |
| 2008 |
20 kilometres Race Walk, Men |
Olympic |
51 |
30 |
| 2012 |
20 kilometres Race Walk, Men |
Olympic |
56 |
34 |
| 2016 |
20 kilometres Race Walk, Men |
Olympic |
74 |
40 |
| 2020 |
20 kilometres Race Walk, Men |
Olympic |
57 |
28 |