In this case, you'll get a certain amount of points for completing small events. Let's say, for example, you get 10 points if you read a book. There is someone supervising your activities and they are the one rewarding you with points. What would you call this person who awards points? All I can think of is "point giver", but I want something a bit more clear and/or professional. Any answers are appreciated!
"Jimmy is the best _____. He gave me 50 points for sending a letter to an old folks' home!"
I tried looking for the correct word on https://www.thesaurus.com/ but couldn't find any. Please let me know if you have something in mind!