The professional badge refers to the number of times user won games, based on the below:

With wining 10 games, user gets a bronze badge. 

With wining 200 games, user gets silver badge. 

With wining 500 game, user gets gold badge. 

With wining 5000 game, user gets ruby badge. 

You can learn more about our system badges throughout the blog link below: https://blog.jawaker.com/jawaker-badges/