Dawid Janczyk (Poland) has never succeeded in becoming the top scorer in a league but was part of the top-20 list of scorers in Jupiler Pro League 2009/2010.
He was born on 23 September 1987, and the place of birth was Nowy Sacz, Poland and the position he normally occupies on the football field is as striker.
Jupiler Pro League
Note that this is top scorer data we have in our database. Dawid Janczyk might be part of top scorer lists in other leagues we don't have here, or seasons we don't have in our database yet.