diff --git a/app/controllers/user_admin_controller.rb b/app/controllers/user_admin_controller.rb
--- a/app/controllers/user_admin_controller.rb
+++ b/app/controllers/user_admin_controller.rb
@@ -153,34 +153,6 @@
   end
 
   def user_stat_max
-    @problems = Problem.find_available_problems
-    @users = User.find(:all, :include => [:contests, :contest_stat])
-    @scorearray = Array.new
-    #set up range from param
-    since_id = params.fetch(:since_id, 0).to_i
-    until_id = params.fetch(:until_id, 0).to_i
-    @users.each do |u|
-      ustat = Array.new
-      ustat[0] = u
-      @problems.each do |p|
-        max_points = 0
-        Submission.find_in_range_by_user_and_problem(u.id,p.id,since_id,until_id).each do |sub|
-          max_points = sub.points if sub and sub.points and (sub.points > max_points)
-        end
-        ustat << [(max_points.to_f*100/p.full_score).round, (max_points>=p.full_score)]
-      end
-      @scorearray << ustat
-    end
-
-    if params[:commit] == 'download csv' then
-      csv = gen_csv_from_scorearray(@scorearray,@problems)
-      send_data csv, filename: 'last_score.csv'
-    else
-      render template: 'user_admin/user_stat'
-    end
-  end
-
-  def user_stat_max
     if params[:commit] == 'download csv'
       @problems = Problem.all
     else