diff --git a/spec/interactors/update_match_score_interactor_spec.rb b/spec/interactors/update_match_score_interactor_spec.rb
new file mode 100644
index 0000000..5885bc6
--- /dev/null
+++ b/spec/interactors/update_match_score_interactor_spec.rb
@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+RSpec.describe UpdateMatchScore do
+  before do
+    @match_score = create(:running_playoff_match).match_scores.first
+    @match_score_params = { points: 42 }
+  end
+
+  context 'save succeeds' do
+    let(:context) do
+      UpdateMatchScore.call(match_score: @match_score, match_score_params: @match_score_params)
+    end
+
+    before do
+      expect_any_instance_of(MatchScore)
+        .to receive(:save).and_return(true)
+      expect_any_instance_of(MatchScore)
+        .to receive(:update).with(@match_score_params).and_return(true)
+    end
+
+    it 'succeeds' do
+      expect(context).to be_a_success
+    end
+
+    it 'provides the match score' do
+      expect(context.match_score).to eq(@match_score)
+    end
+  end
+
+  context 'save fails' do
+    let(:context) do
+      UpdateMatchScore.call(match_score: @match_score, match_score_params: @match_score_params)
+    end
+
+    before do
+      expect_any_instance_of(MatchScore)
+        .to receive(:save).and_return(false)
+    end
+
+    it 'fails' do
+      test = context.failure?
+      expect(test).to eq(true)
+    end
+  end
+
+  context 'update fails' do
+    let(:context) do
+      UpdateMatchScore.call(match_score: @match_score, match_score_params: @match_score_params)
+    end
+
+    before do
+      expect_any_instance_of(MatchScore)
+        .to receive(:update).and_return(false)
+    end
+
+    it 'fails' do
+      test = context.failure?
+      expect(test).to eq(true)
+    end
+  end
+end