Getting his first taste of Big League action in 1972, Blanco appeared in 39 games, batting a cool .350 with seven hits over 20 at-bats while playing third, short and second base.
The 1973 season was not as kind, as he appeared in 28 games, though he failed to collect a hit over 12 at-bats, though he did score four runs.
Finally, the 1974 season would see him appear in the final five games of his brief career, with one single hitless at-bat to show for it, thus concluding a three-year career that saw him go 7-for-33 at the plate, good for a .212 average, with nine runs scored over 72 games, all with the Giants.
He did have an extensive Minor League career that spanned 14 years, from 1961 to 1974, that saw him collect 1458 hits along with a .268 average over 1470 games, with 830 runs scored and 204 stolen bases.
