I have a few idea's for improving the competition's
- Make something like the competition creator
If you make a competition with a profile selected that name will be the creator, the handy thing of this is that you don't have to search your competition, so then you can make a search field or something or a list of your own competitions. This makes it easier.
-List titles using for sorting
So if you click ID for example it will sort ascending by id and if you click again it will be descending, this can be also for username etc. And this could fit in highscores also... but it's just an idea and maybe a lot to change everything.
-Current level in competition tracker
Show the current level of a player in the competition and maybe the start level, this could go between gaind lvls and xp.
-Top competitor
When there's 0 xp gain nothing stands at top competitor this can maybe be changed to None or something because empty is ugly
Also if other people have more ideas about this you can also post. And i know that you may be busy but then again i can help

Greets,
DutchStarz