diff --git a/app/models/hackathon.rb b/app/models/hackathon.rb
new file mode 100644
index 00000000..b77a590a
--- /dev/null
+++ b/app/models/hackathon.rb
@@ -0,0 +1,5 @@
+class Hackathon < Subscription
+  field :update_interval, type: Integer, default: 15
+
+  belongs_to :group
+end
diff --git a/test/factories/hackathons.rb b/test/factories/hackathons.rb
new file mode 100644
index 00000000..c135c483
--- /dev/null
+++ b/test/factories/hackathons.rb
@@ -0,0 +1,23 @@
+FactoryGirl.define do
+  factory :hackathon do
+    update_interval 15
+
+    group
+    association :round, :hackathon, status: "inactive"
+
+    after(:create) do |hackathon, evaluator|
+       hackathon.group.owner_id = hackathon.user.id
+       hackathon.round.name = hackathon.group.name = "#{hackathon.user.name}'s Hackathon"
+    end
+
+    factory :hackathon_with_repositories do
+      transient do
+        repos_count 3
+      end
+
+      after(:create) do |hackathon, evaluator|
+        create_list(:repositories, evaluator.repos_count, hackathon: hackathon)
+      end
+    end
+  end
+end
diff --git a/test/factories/rounds.rb b/test/factories/rounds.rb
index 108e19c1..cc49da96 100644
--- a/test/factories/rounds.rb
+++ b/test/factories/rounds.rb
@@ -5,6 +5,11 @@
     end_date {Faker::Time.between(DateTime.now + 29, DateTime.now + 30)}
     status {random = ["active","open","inactive"].sample}
 
+    trait :hackathon do
+      from_date { Faker::Time.between(DateTime.now + 1, DateTime.now + 2)}
+      end_date  {Faker::Time.between(DateTime.now + 3, DateTime.now + 5)}
+    end
+
     factory :round_with_commits do
         transient do
             commits_count 1
diff --git a/test/models/hackathon_test.rb b/test/models/hackathon_test.rb
new file mode 100644
index 00000000..8dadf6cd
--- /dev/null
+++ b/test/models/hackathon_test.rb
@@ -0,0 +1,97 @@
+require "test_helper"
+require "sidekiq/testing"
+
+class HackathonTest < ActiveSupport::TestCase
+
+  def setup
+    Sidekiq::Testing.fake!
+    @hackathon = create(:hackathon, user: create(:user))
+  end
+
+  test "is_valid" do
+     assert(@hackathon.valid?)
+     assert(@hackathon.round.valid?)
+     assert(@hackathon.group.valid?)
+  end
+
+  test "does_not_create_any_goal" do
+  end
+
+  test "has_valid_hackathon_group" do
+  end
+
+  test "is_valid_if_there_is_only_group_admin_and_no_members_in_the_hackathon_group" do
+  end
+
+  test "has_valid_hackathon_round" do
+  end
+
+  test "hackathon_round_has_initial_state_as_inactive" do
+  end
+
+  test "sidekiq_job_should_be_enqueued_to_open_hackathon_round_at_start_datetime" do
+  end
+
+  test "update_interval_can_be_updated_if_hackathon_round_is_inactive" do
+  end
+
+  test "update_interval_cannot_be_updated_if_hackathon_round_is_open" do
+  end
+
+  test "update_interval_cannot_be_updated_if_hackathon_round_is_closed" do
+  end
+
+  test "is_valid_if_repositories_array_is_blank" do
+  end
+
+  test "is_valid_if_repositories_array_has_valid_repository_ids" do
+  end
+
+  test "repositories_should_not_reference_hackathon" do#check inverse_of: nil
+  end
+
+  # Need to add test cases to add repositories.
+  test "points_is_updated_if_round_spans_different_months" do  # eg. Hackathon is from 30-Mar till 2-Apr
+  end
+
+  test "points_is_updated_for_commits_and_activity_only_for_hackathon_repositories" do
+  end
+
+  test "points_is_updated_for_all_commits_and_activity_if_hackathon_repositories_is_blank" do
+  end
+
+  test "points_is_updated_only_for_commits_and_activity_between_start_and_end_of_hackathon_round" do
+  end
+
+  test "points_is_not_calculated_when_the_hackathon_round_is_inactive" do
+  end
+
+  test "points_updation_does_not_create_any_transactions" do
+  end
+
+  test "sidekiq_job_should_be_enqueued_for_next_fetch_data_after_udpate_interval" do
+  end
+
+  test "new_member_can_be_added_to_hackathon_group_if_hackathon_round_is_open" do
+  end
+
+  test "new_member_points_is_calculated_from_round_start_datetime_if_hackathon_round_is_open" do
+  end
+
+  test "existing_member_points_is_updated_from_last_interval_time_if_hackathon_round_is_open" do
+  end
+
+  test "widget_shows_points_of_members_with_non_zero_points_only_for_the_hackathon_round" do
+  end
+
+  test "widget_shows_points_of_members_if_hackathon_round_is_closed" do
+  end
+
+  # not sure if we need to check this.
+  test "hackathon_round_score_is_different_from_user_monthly_subscription_round" do
+  end
+
+  test "hackathon_round_score_is_a_subset_of_user_monthly_subscription_round" do
+  end
+
+end