diff --git a/spec/benchmark_spec.rb b/spec/benchmark_spec.rb
new file mode 100644
index 0000000..cc385bc
--- /dev/null
+++ b/spec/benchmark_spec.rb
@@ -0,0 +1,35 @@
+require_relative 'helper'
+require 'rack/test'
+require 'app'
+
+describe 'benchmark the app' do
+  include Rack::Test::Methods
+
+  let(:app) { Sinatra::Application }
+
+  bench_performance_constant 'latest' do
+    100.times do
+      get '/latest'
+    end
+  end
+
+  bench_performance_constant 'latest base' do
+    100.times do
+      get '/latest?base=USD'
+    end
+  end
+
+  bench_performance_constant 'historical' do
+    100.times do
+      random_date = Date.today - rand(4000)
+      get "/#{random_date}"
+    end
+  end
+
+  bench_performance_constant 'historical base' do
+    100.times do
+      random_date = Date.today - rand(4000)
+      get "/#{random_date}?base=USD"
+    end
+  end
+end
diff --git a/spec/helper.rb b/spec/helper.rb
index 3274fe8..cb2658e 100644
--- a/spec/helper.rb
+++ b/spec/helper.rb
@@ -1,2 +1,3 @@
 require 'minitest/autorun'
+require 'minitest/benchmark'
 require 'minitest/pride'