You might already know that you can sort users according to their balance but what if you want to see only users with 100 points? While there is no field to fill out, you can do this via your URL by sing the amount or ctype variables together with orderby=balance.
Example 1: Show only users with 100 points:
http://website.com/wp-admin/users.php?orderby=balance&amount=100
Example 2: Show only users with 0 points:
http://website.com/wp-admin/users.php?orderby=balance&amount=0
Example 3: Show only users with 100 credits (custom point type):
http://website.com/wp-admin/users.php?orderby=balance&ctype=mycustomtypekey&amount=100
Remember to repliace mycustomtypekey with the meta key you set for your custom point type!