I have set up a formula as follows:

10 * (sqrt(n)/sqrt(r))

I just had a tournament where I wanted to apply this points structuring and the points seemed to calculate properly with the exception of one player. When I ran the stats it showed points as follows (9 player tourny)

1st: 30

2nd: 21

3rd: 17

4th: 15

5th: 13

6th: 13....should be 12

7th: 11

8th: 11

9th: 10

Any ideas as to why 6th place received 13 pts as opposed to 12?

Thanks alot.

Sass