diff --git a/app/models/score.rb b/app/models/score.rb
new file mode 100644
index 0000000..c24c0a9
--- /dev/null
+++ b/app/models/score.rb
@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+class Score < ApplicationRecord
+  belongs_to :match
+  belongs_to :team
+end
diff --git a/app/models/stage.rb b/app/models/stage.rb
new file mode 100644
index 0000000..b43d80c
--- /dev/null
+++ b/app/models/stage.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class Stage < ApplicationRecord
+  belongs_to :tournament
+  has_many :matches, dependent: :destroy
+  has_many :groups, dependent: :destroy
+end