diff --git a/Lib/unittest/result.py b/Lib/unittest/result.py
index 7757dba9670..3ace0a5b7bf 100644
--- a/Lib/unittest/result.py
+++ b/Lib/unittest/result.py
@@ -166,7 +166,8 @@ class TestResult(object):
         """
         # support for a TextTestRunner using an old TestResult class
         if hasattr(self, "collectedDurations"):
-            self.collectedDurations.append((test, elapsed))
+            # Pass test repr and not the test object itself to avoid resources leak
+            self.collectedDurations.append((str(test), elapsed))
 
     def wasSuccessful(self):
         """Tells whether or not this result was a success."""
diff --git a/Misc/NEWS.d/next/Tests/2023-07-16-02-57-08.gh-issue-104090.cKtK7g.rst b/Misc/NEWS.d/next/Tests/2023-07-16-02-57-08.gh-issue-104090.cKtK7g.rst
new file mode 100644
index 00000000000..5cc6c5bbe15
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2023-07-16-02-57-08.gh-issue-104090.cKtK7g.rst
@@ -0,0 +1 @@
+Avoid creating a reference to the test object in :meth:`~unittest.TestResult.collectedDurations`.