Meant to add that. wherps.

rails/map-mash/app/models/mash.rb

@@ -2,5 +2,5 @@ class Mash < ActiveRecord::Base
   has_one :map_a, :class_name => 'Map'
   has_one :map_b, :class_name => 'Map'
   has_one :winner, :class_name => 'Map'
-  has_one :requester
+  belongs_to :requester
 end

rails/map-mash/app/models/requester.rb

@@ -1,2 +1,3 @@
 class Requester < ActiveRecord::Base
+  has_many :mashes
 end