Fun challenge and I wish it would have taught understand data in context.
I believe it is important to be critical of your data and you need to understand your data in context.
Therefore, I have kept tiers in the data as a team (Country) can have multiple people who scored same max points. Sports after all is in many cases is a team contest or have multiple athletes competing in same events.
Here is my solution and using the rank tool seems the most natural tool to use.
Screenshot of where multiple athletes have scored same max points.