Secretariat won the triple crown in 1973.
In the Belmont, a race they didn't think Secretariat would win because they considered him a sprinter, you see Ron Turcotte look back at the field falling behind. He knew he was racing the clock then. When he asked Secretariat to go, that horse flew.
You can watch that amazing race here:
It was the most amazing race ever and still makes me tear up.