diff --git a/day-01/benchmark b/day-01/benchmark
new file mode 100644
index 0000000..424ca50
--- /dev/null
+++ b/day-01/benchmark
@@ -0,0 +1,6 @@
+goos: linux
+goarch: amd64
+pkg: github.com/onyx-and-iris/aoc2024/day-01
+cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
+BenchmarkMain-12    	1000000000	         0.001628 ns/op
+ok  	github.com/onyx-and-iris/aoc2024/day-01	0.015s
diff --git a/day-01/main_internal_test.go b/day-01/main_internal_test.go
new file mode 100644
index 0000000..ae4aa6b
--- /dev/null
+++ b/day-01/main_internal_test.go
@@ -0,0 +1,11 @@
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+func BenchmarkMain(b *testing.B) {
+	os.Stdout, _ = os.Open(os.DevNull)
+	main()
+}