diff --git a/admin/app/admin/jam_ruby_users.rb b/admin/app/admin/jam_ruby_users.rb
index 432de438b..96b28d6e3 100644
--- a/admin/app/admin/jam_ruby_users.rb
+++ b/admin/app/admin/jam_ruby_users.rb
@@ -637,10 +637,10 @@ ActiveAdmin.register JamRuby::User, :as => 'Users' do
   controller do
 
     # this actually searches on first name, last name, and email, because of get_autocomplete_items defined below
-    autocomplete :user, :email, :full => true, :display_value => :autocomplete_display_name
+    autocomplete :user, :email, :full => true, :display_value => :autocomplete_display_name, extra_data: [:last_jam_addr]
 
     def get_autocomplete_items(parameters)
-      User.select("email, first_name, last_name, id").where(["email ILIKE ? OR first_name ILIKE ? OR last_name ILIKE ?", "%#{parameters[:term]}%", "%#{parameters[:term]}%", "%#{parameters[:term]}%"])
+      User.select("email, first_name, last_name, id, last_jam_addr").where(["email ILIKE ? OR first_name ILIKE ? OR last_name ILIKE ?", "%#{parameters[:term]}%", "%#{parameters[:term]}%", "%#{parameters[:term]}%"])
     end
 
 
@@ -698,6 +698,39 @@ ActiveAdmin.register JamRuby::User, :as => 'Users' do
       redirect_to edit_admin_user_path(@user)
 
     end
+
+    def user_latencies
+      latency_params = params[:latencies]
+      latency_url = "#{Rails.application.config.latency_data_host}/user_latencies"
+      uri = URI(latency_url)
+      if not ([latency_params[:my_user_id], latency_params[:my_public_ip], latency_params[:user_1_id]]).any?{|param| param.blank? }
+        user_ids = [latency_params[:user_1_id]]
+        user_ids.push(latency_params[:user_2_id]) unless latency_params[:user_2_id].blank?
+        user_ids.push(latency_params[:user_3_id]) unless latency_params[:user_3_id].blank?
+        user_ids.push(latency_params[:user_4_id]) unless latency_params[:user_4_id].blank?
+        user_ids.push(latency_params[:user_5_id]) unless latency_params[:user_5_id].blank?
+        begin
+          http = Net::HTTP.new(uri.host, uri.port)
+          http.read_timeout = 5 
+          http.use_ssl = true if Rails.application.config.latency_data_host.start_with?("https://")
+          request = Net::HTTP::Post.new(uri.path, 'Content-Type' => 'application/json')
+          request.body = { 
+            my_user_id: latency_params[:my_user_id],
+            my_public_ip: latency_params[:my_public_ip],
+            users: user_ids
+          }.to_json
+          request["Authorization"] = "Basic #{Rails.application.config.latency_data_host_auth_code}"
+          response = http.request(request)
+          @user_latencies = response.body
+          #render text: JSON.pretty_generate(@user_latencies)
+        rescue => e
+          render text: e.message
+        end
+      else
+        flash[:error] = 'Please provide all required fields'
+        redirect_to admin_latency_between_users_path
+      end
+    end
   end
 
 end
\ No newline at end of file
diff --git a/admin/app/admin/user_latencies.rb b/admin/app/admin/user_latencies.rb
new file mode 100644
index 000000000..3be625e39
--- /dev/null
+++ b/admin/app/admin/user_latencies.rb
@@ -0,0 +1,7 @@
+ActiveAdmin.register_page "Latency Between Users" do
+  menu parent: 'Users'
+
+  content :title => "Latency Between Users" do
+    render 'admin/users/users_latency_form'
+  end
+end
\ No newline at end of file
diff --git a/admin/app/assets/javascripts/users.js b/admin/app/assets/javascripts/users.js
new file mode 100644
index 000000000..6f12aa939
--- /dev/null
+++ b/admin/app/assets/javascripts/users.js
@@ -0,0 +1,45 @@
+function intToIP(int) {
+  var part1 = int & 255;
+  var part2 = ((int >> 8) & 255);
+  var part3 = ((int >> 16) & 255);
+  var part4 = ((int >> 24) & 255);
+
+  return part4 + "." + part3 + "." + part2 + "." + part1;
+}
+
+$(document).ready(function() {
+  $('form#user_latencies_form #latencies_my_user').on('focus', function(){
+    $('#latencies_my_user_id').val('')
+  });
+
+  $('form#user_latencies_form #latencies_my_user').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_my_user_id').val('');
+    $('#latencies_my_public_ip').val('');
+    if(data.item.last_jam_addr){
+      var ipAddr = intToIP(data.item.last_jam_addr);
+      $('#latencies_my_public_ip').val(ipAddr);
+    }
+    $('#latencies_my_user_id').val(data.item.id);
+    
+  });
+
+  $('form#user_latencies_form #latencies_user_1').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_user_1_id').val(data.item.id);
+  })
+
+  $('form#user_latencies_form #latencies_user_2').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_user_2_id').val(data.item.id);
+  })
+
+  $('form#user_latencies_form #latencies_user_3').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_user_3_id').val(data.item.id);
+  })
+
+  $('form#user_latencies_form #latencies_user_4').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_user_4_id').val(data.item.id);
+  })
+
+  $('form#user_latencies_form #latencies_user_5').bind('railsAutocomplete.select', function(event, data){
+    $('#latencies_user_5_id').val(data.item.id);
+  })
+});
\ No newline at end of file
diff --git a/admin/app/views/admin/users/_users_latency_form.html.erb b/admin/app/views/admin/users/_users_latency_form.html.erb
new file mode 100644
index 000000000..aa5da7dd1
--- /dev/null
+++ b/admin/app/views/admin/users/_users_latency_form.html.erb
@@ -0,0 +1,23 @@
+<%= semantic_form_for 'latencies', url: user_latencies_admin_users_path, html: {id: 'user_latencies_form'} do |f| %>
+  <%= f.inputs :name => 'Select user', :class => 'inputs' do %>
+    <%= f.input :my_user, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'My user name/email' %>
+    <%= f.input :my_user_id, as: :hidden %>
+    <%= f.input :my_public_ip, label: 'My user public IP' %>
+  <% end %>
+  <%= f.inputs :name => 'Select other users', :class => 'inputs' do %>
+    <%= f.input :user_1, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'Other user 1' %>
+    <%= f.input :user_1_id, as: :hidden %>
+    <%= f.input :user_2, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'Other user 2', required: false %>
+    <%= f.input :user_2_id, as: :hidden %>
+    <%= f.input :user_3, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'Other user 3', required: false %>
+    <%= f.input :user_3_id, as: :hidden %>
+    <%= f.input :user_4, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'Other user 4', required: false %>
+    <%= f.input :user_4_id, as: :hidden %>
+    <%= f.input :user_5, :as => :autocomplete, url: autocomplete_user_email_admin_users_path, label: 'Other user 5', required: false %>
+    <%= f.input :user_5_id, as: :hidden %>
+  <% end %>
+  <%= f.actions do %>
+    <%= f.action :submit, :as => :button, label: 'Submit' %>
+    <%= f.action :cancel, :as => :link, label: 'Cancel' %>
+  <% end %>
+<% end %>
\ No newline at end of file
diff --git a/admin/app/views/admin/users/user_latencies.html.erb b/admin/app/views/admin/users/user_latencies.html.erb
new file mode 100644
index 000000000..9f8fccd62
--- /dev/null
+++ b/admin/app/views/admin/users/user_latencies.html.erb
@@ -0,0 +1 @@
+<pre><%=  JSON.pretty_generate(JSON.parse(@user_latencies)) -%></pre>
\ No newline at end of file
diff --git a/admin/config/environments/development.rb b/admin/config/environments/development.rb
index f9895b612..2d0595cd7 100644
--- a/admin/config/environments/development.rb
+++ b/admin/config/environments/development.rb
@@ -46,4 +46,7 @@ JamAdmin::Application.configure do
   config.email_generic_from      = 'nobody-dev@jamkazam.com'
   config.email_alerts_alias         = 'alerts-dev@jamkazam.com'
   config.email_social_alias         = 'social-dev@jamkazam.com'
+
+  config.latency_data_host = "http://localhost:4001/local" 
+  config.latency_data_host_auth_code = "c2VydmVyOnBhc3N3b3Jk"
 end
diff --git a/admin/config/routes.rb b/admin/config/routes.rb
index ef2322257..32a0659e3 100644
--- a/admin/config/routes.rb
+++ b/admin/config/routes.rb
@@ -17,6 +17,7 @@ JamAdmin::Application.routes.draw do
         get :add_school_user, on: :collection
         post :add_school_user, on: :collection
         patch :add_school_user, on: :member
+        post :user_latencies, on: :collection
       end
     end
 
diff --git a/ruby/.gitignore b/ruby/.gitignore
index fe1f4d2c5..eef8128f0 100644
--- a/ruby/.gitignore
+++ b/ruby/.gitignore
@@ -23,3 +23,4 @@ vendor
 *.swp
 *.iml
 .byebug_history
+.ruby-version