What is the shortest-lived WR in the history?

[huntinwr]

What is the shortest-lived WR in history?

If you don't want to count marks made during the same competition, here's one:

In 1957, Olavi Salonen of Finland ran 3:40.2, then said "Someone will break 3:40 soon."

The next day, Stanislav Jungwirth of Czechoslovakia ran 3:38.1!

[huntinwr]

What is the shortest-lived WR in history?

I forget to mention that was the m1,500, although I'm sure no one was in doubt