1926
29:03:30
Argentina
Uomini
55-59
1927
29:11:36
Messico
Uomini
50-54
1928
29:23:32
Argentina
Donne
55-59
1929
29:23:51
Cile
Donne
35-39
1930
29:23:53
Argentina
Donne
55-59
1931
29:25:34
Argentina
Uomini
20-34
1932
29:29:11
Argentina
Uomini
50-54
1933
29:38:56
Argentina
Uomini
60-64
1934
29:46:38
Argentina
Donne
40-44
1935
29:49:06
Messico
Uomini
50-54
1936
29:51:47
Argentina
Uomini
55-59
1937
29:59:12
Argentina
Donne
50-54
1938
30:00:30
Argentina
Donne
55-59
1939
30:23:34
Argentina
Uomini
55-59
1940
30:31:12
Argentina
Donne
50-54
1941
30:33:10
Argentina
Donne
40-44
1942
30:41:25
Panama
Uomini
40-44
1943
30:48:06
Argentina
Uomini
55-59
1944
30:48:45
Argentina
Donne
45-49
1945
31:01:46
Argentina
Uomini
50-54
1946
31:11:37
Argentina
Uomini
65-69
1947
31:16:23
Brasile
Uomini
50-54
1948
31:16:43
Brasile
Donne
45-49
1949
31:43:24
Argentina
Donne
45-49
1950
31:44:23
Argentina
Uomini
50-54
