First 3 days of the entire date range, or does this need to be dynamic. Could you elaborate a little bit?
As Dave has mentioned, a little more detail would be useful.
You'll probably need to use either
Possibly in combination with IF (in the filter shelf - set to show)
IF [rank] < 4 then 'show' else 'hide' end
IF INDEX() < 4 then 'show' else 'hide' end
If its dates, maybe DATEDIFF()
If you can provide more detail, we can try and help further.