diff --git a/tools/pretty_tox_serial.sh b/tools/pretty_tox_serial.sh
new file mode 100755
index 0000000..490d263
--- /dev/null
+++ b/tools/pretty_tox_serial.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+TESTRARGS=$@
+
+if [ ! -d .testrepository ]; then
+    testr init
+fi
+testr run --subunit $TESTRARGS | subunit-2to1 | tools/colorizer.py
+testr slowest