Fifty-nine track and field athletes won gold medals during the 2016 Summer Olympics in Rio. But only three of them broke a world record.

The performances of Almaz Ayana (women’s 10,000 meters), Wayde van Niekerk (men’s 400 meters), and Anita Wlodarczyk (women’s hammer throw) were superior not only to those of their Olympic competitors, but to the efforts of every athlete who has ever competed in their respective sports.

Yet there is still another record that none of them have broken, a record that will take decades to break: the record for the longest standing record.