diff --git a/app/controllers/test_runs_controller.rb b/app/controllers/test_runs_controller.rb
index cb353c9..5b7d77f 100644
--- a/app/controllers/test_runs_controller.rb
+++ b/app/controllers/test_runs_controller.rb
@@ -32,7 +32,7 @@ def create
 
     respond_to do |format|
       if @test_run.save
-        TestRunJob.perform_later(@test_run.id)
+        TestRunJob.perform_later(@test_run.id) unless @test_run.manual_execution?
         format.html { redirect_to test_run_url(@test_run), notice: 'Test model version run was successfully created.' }
         format.json { render :show, status: :created, location: @test_run }
       else
@@ -51,7 +51,7 @@ def set_test_run
 
   # Only allow a list of trusted parameters through.
   def test_run_params
-    params.require(:test_run).permit(:name, :prompt_id, :calls, :passing_threshold, assertion_ids: []).tap do |permited|
+    params.require(:test_run).permit(:name, :prompt_id, :calls, :passing_threshold, :manual_execution, assertion_ids: []).tap do |permited|
       model_version_ids = params[:test_run][:model_version_ids]&.select(&:present?)
       if model_version_ids.present?
         permited[:test_model_version_runs_attributes] = model_version_ids.map do |model_version_id|
diff --git a/app/views/test_runs/_form.html.erb b/app/views/test_runs/_form.html.erb
index 3e2cb4b..a3596ef 100644
--- a/app/views/test_runs/_form.html.erb
+++ b/app/views/test_runs/_form.html.erb
@@ -37,6 +37,10 @@
       <%= form.label 'Passing threshold in %' %>
       <%= form.number_field :passing_threshold, step: '0.01', max: 100, class: "block shadow rounded-md border border-gray-400 outline-none px-3 py-2 mt-2 w-full" %>
     </div>
+    <div class="my-5">
+      <%= form.check_box :manual_execution %>
+      <%= form.label :manual_execution %>
+    </div>
 
     <div class="inline">
       <%= form.submit class: "rounded-lg py-3 px-5 bg-blue-600 text-white inline-block font-medium cursor-pointer" %>
diff --git a/db/migrate/20240819134918_add_manual_execution_to_test_run.rb b/db/migrate/20240819134918_add_manual_execution_to_test_run.rb
new file mode 100644
index 0000000..b14d025
--- /dev/null
+++ b/db/migrate/20240819134918_add_manual_execution_to_test_run.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddManualExecutionToTestRun < ActiveRecord::Migration[7.1]
+  def change
+    add_column :test_runs, :manual_execution, :boolean, null: false, default: false
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 8a1fb0e..ca8d538 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -12,7 +12,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 20_240_812_150_858) do
+ActiveRecord::Schema[7.1].define(version: 20_240_819_134_918) do
   # These are extensions that must be enabled in order to support this database
   enable_extension 'plpgsql'
 
@@ -235,6 +235,7 @@
     t.datetime 'updated_at', null: false
     t.float 'passing_threshold', default: 0.0
     t.string 'name'
+    t.boolean 'manual_execution', default: false, null: false
     t.index ['prompt_id'], name: 'index_test_runs_on_prompt_id'
   end
 
diff --git a/spec/controllers/test_runs_controller_spec.rb b/spec/controllers/test_runs_controller_spec.rb
index 8d6fb0b..e1e8706 100644
--- a/spec/controllers/test_runs_controller_spec.rb
+++ b/spec/controllers/test_runs_controller_spec.rb
@@ -86,6 +86,18 @@
         expect(response.content_type).to eq('application/json; charset=utf-8')
         expect(response.location).to eq(test_run_url(TestRun.reorder(:created_at).last))
       end
+
+      context 'with manual_execution param' do
+        before do
+          valid_attributes[:manual_execution] = '1'
+          allow(SolidQueue::Job).to receive(:enqueue)
+        end
+
+        it 'does not enqueue a TestRunJob' do
+          post :create, params: { test_run: valid_attributes }
+          expect(SolidQueue::Job).not_to have_received(:enqueue)
+        end
+      end
     end
   end
 end