Arena Points

Hello,
I used to play Arena since its release and I found a score bug.
I can't get over 25% of the 2nd best player in the scoreboard :In fact I can't win points because the score of the second has decreased. But I can still earn gold.

Here is the first match score.
Then after this fight i lost 13 points instead of winning 10.

The picture isn't reversed as you can see my bones went up and is higher than the previous one.