Extracting the top five maximum unique values

Question

I am running a Nerf league at a party and want my spreadsheet to show the top five contestants.

Contestants are allowed unlimited entries and only their top score is counted. Entries are being collected on Google Sheets and The Top 5 published on a kiosk screen.

Here is some sample data:

- **Full Name,Score**
- Test Test,3
- Test2 Test2,1
- Test3 Test3,10
- Test4 Test4,3
- Test5 Test5,42
- Test5 Test5,500
- Test6 Test6,20

Here is the formula I have so far (with thanks to tigeravatar):

=INDEX($A$2:$A$28,MATCH(1,INDEX(($B$2:$B$28=LARGE($B$2:$B$28,ROWS(I$1:I1)))*(COUNTIF(I$1:I1,$A$2:$A$28)=0),),0))

This formula shows all maximum values - if, for example, one person has 5 entries that are higher than everyone else, they will all be counted.

The "top five" must show only the entry with the most points from five different contestants.

What do I need to do to show only the top entry that each contestant has provided?

Solution

Seems that the formula offered by @AdamL met the requirements:

=QUERY(A2:B28,"select A, max(B) group by A order by max(B) desc limit 5 label max(B) ''",0)