diff --git a/app/controllers/reports_controller.rb b/app/controllers/reports_controller.rb
index 9d0df944d..05d020588 100644
--- a/app/controllers/reports_controller.rb
+++ b/app/controllers/reports_controller.rb
@@ -2,4 +2,8 @@ class ReportsController < ApplicationController
   def user_promotions
     @report = Reports::UserPromotions.new
   end
+
+  def janitor_trials
+    @report = Reports::JanitorTrials.new
+  end
 end
diff --git a/app/logical/reports/janitor_trials.rb b/app/logical/reports/janitor_trials.rb
new file mode 100644
index 000000000..772f99717
--- /dev/null
+++ b/app/logical/reports/janitor_trials.rb
@@ -0,0 +1,51 @@
+module Reports
+  class JanitorTrials
+    class Janitor
+      attr_reader :trial
+
+      def initialize(trial)
+        @trial = trial
+      end
+
+      def user
+        trial.user
+      end
+
+      def since
+        3.months.ago
+      end
+
+      def approval_count
+        @approval_count ||= Post.where("approver_id = ? and created_at >= ?", user.id, since).count
+      end
+
+      def deleted_count
+        Post.where("approver_id = ? and created_at >= ? and is_deleted = true", user.id, since).count
+      end
+
+      def percentile_25_score
+        ActiveRecord::Base.select_value_sql("select percentile_cont(0.25) within group (order by score) from posts where created_at >= ? and approver_id = ?", since, user.id).to_i
+      end
+
+      def percentile_50_score
+        ActiveRecord::Base.select_value_sql("select percentile_cont(0.50) within group (order by score) from posts where created_at >= ? and approver_id = ?", since, user.id).to_i
+      end
+
+      def rating_e_percentage
+        100 * Post.where("approver_id = ? and created_at >= ? and rating = 'e'", user.id, since).count.to_f / [approval_count, 1].max
+      end
+
+      def rating_q_percentage
+        100 * Post.where("approver_id = ? and created_at >= ? and rating = 'q'", user.id, since).count.to_f / [approval_count, 1].max
+      end
+
+      def rating_s_percentage
+        100 * Post.where("approver_id = ? and created_at >= ? and rating = 's'", user.id, since).count.to_f / [approval_count, 1].max
+      end
+    end
+
+    def janitors
+      JanitorTrial.where(status: "active").to_a.map {|x| Janitor.new(x)}
+    end
+  end
+end
diff --git a/app/models/janitor_trial.rb b/app/models/janitor_trial.rb
index c50e8997f..2b1927172 100644
--- a/app/models/janitor_trial.rb
+++ b/app/models/janitor_trial.rb
@@ -8,6 +8,7 @@ class JanitorTrial < ActiveRecord::Base
   attr_accessible :user_id, :user_name
   validates_inclusion_of :status, :in => %w(active inactive)
   before_validation :initialize_status
+  validates_uniqueness_of :user_id
 
   def self.search(params)
     q = where("status = ?", "active")
diff --git a/app/views/reports/janitor_trials.html.erb b/app/views/reports/janitor_trials.html.erb
new file mode 100644
index 000000000..05f228dfb
--- /dev/null
+++ b/app/views/reports/janitor_trials.html.erb
@@ -0,0 +1,61 @@
+<div id="c-reports">
+  <div id="a-user-promotions">
+    <h1>Janitor Trial Report</h1>
+
+    <table width="100%" class="striped" id="sortable" style="margin-bottom: 1em;">
+      <thead>
+        <tr>
+          <th data-sort="string">User</th>
+          <th data-sort="int">Approvals</th>
+          <th data-sort="int">Deleted</th>
+          <th data-sort="int" title="25% of approvals received this score or less">Quartile Score</th>
+          <th data-sort="int" title="50% of approvals received this score or less">Median Score</th>
+          <th>Explicit %</th>
+          <th>Questionable %</th>
+          <th>Safe %</th>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <% cache("janitor-trials-report/#{Date.today}") do %>
+          <% @report.janitors.each do |janitor| %>
+            <tr>
+              <td><%= link_to_user janitor.user %></td>
+              <td><%= link_to janitor.approval_count, posts_path(:tags => "approver:#{janitor.user.name}") %></td>
+              <td><%= link_to janitor.deleted_count, posts_path(:tags => "approver:#{janitor.user.name} status:deleted") %></td>
+              <td><%= janitor.percentile_25_score %></td>
+              <td><%= janitor.percentile_50_score %></td>
+              <td><%= number_to_percentage janitor.rating_e_percentage, :precision => 0 %></td>
+              <td><%= number_to_percentage janitor.rating_q_percentage, :precision => 0 %></td>
+              <td><%= number_to_percentage janitor.rating_s_percentage, :precision => 0 %></td>
+              <td>
+                <% if CurrentUser.user.is_moderator? %>
+                  <%= link_to "Promote", promote_janitor_trial_path(janitor.trial), :method => :put, :remote => true %>
+                  | <%= link_to "Demote", demote_janitor_trial_path(janitor.trial), :method => :put, :remote => true %>
+                <% end %>
+              </td>
+            </tr>
+          <% end %>
+        <% end %>
+      </tbody>
+    </table>
+
+    <p>All numbers shown are for the past 3 months.</p>
+  </div>
+</div>
+
+<% content_for(:page_title) do %>
+  Janitor Trial Report - <%= Danbooru.config.app_name %>
+<% end %>
+
+<%= content_for(:html_header) do %>
+  <%= javascript_include_tag "stupidtable" %>
+  <script type="text/javascript">
+    $(function() {
+      $("#sortable").stupidtable().on("aftertablesort", function() {
+        $("#sortable tbody tr:even").removeClass("odd").addClass("even");
+        $("#sortable tbody tr:odd").removeClass("even").addClass("odd");
+      });
+    });
+  </script>
+<% end %>
\ No newline at end of file
diff --git a/app/views/static/site_map.html.erb b/app/views/static/site_map.html.erb
index 533283c73..48bddfa26 100644
--- a/app/views/static/site_map.html.erb
+++ b/app/views/static/site_map.html.erb
@@ -58,7 +58,7 @@
       <ul>
         <li><h1>Reports</h1></li>
         <li><%= link_to("User Promotions", reports_user_promotions_path) %></li>
-      </ul>
+        <li><%= link_to("Janitor Trials", reports_janitor_trials_path) %></ul>
     </section>
     <section>
       <ul>
diff --git a/config/routes.rb b/config/routes.rb
index 026232c32..1b168509c 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -207,6 +207,7 @@ Rails.application.routes.draw do
   resources :artist_commentary_versions, :only => [:index]
   resource :related_tag, :only => [:show]
   get "reports/user_promotions" => "reports#user_promotions"
+  get "reports/janitor_trials" => "reports#janitor_trials"
   resources :saved_searches
   resource :session do
     collection do