May 25th 1935 was to go down in the history books. Owens attended the Big Ten Championships in Ann Arbor, Michigan. In the space of 45 minutes he had smashed 5 world records and tied another. This feat has never been equalled; it is still considered the greatest single performance in the history of track and field.
This was Jesse Owens. I don't know if the tie would count as your 6th.
Indeed yes, an 'iffy' question.
The poor guy's whole life was 'iffy' and the way he was treated was shameful especially when you think of how star athletes are treated today.