diff --git a/tests/language/language_dartdevc.status b/tests/language/language_dartdevc.status
index 10d518fa2bb..5b7b60d6301 100644
--- a/tests/language/language_dartdevc.status
+++ b/tests/language/language_dartdevc.status
@@ -7,9 +7,13 @@
 [ $compiler == ddc ]
 async_star/async_star_await_for_test: Skip # evades flake detection https://github.com/dart-lang/sdk/issues/51086
 async_star/throw_in_catch_test: Skip # Times out. Issue 29920
+closure/cycles_test: Pass, Slow # Long test to pressure GC, periodically times out
 external_abstract_fields/external_fields_test: SkipByDesign # Non-JS-interop external members are not supported
 inference_update_2/external_field_test: SkipByDesign # Non-JS-interop external members are not supported
 inference_update_2/why_not_promoted_external_error_test: SkipByDesign # Non-JS-interop external members are not supported
 number/int64_literal_runtime*_test: Skip # This is testing Dart 2.0 int64 semantics.
 superinterface_variance/*: Skip # Issue dart-lang/language#113
 vm/*: SkipByDesign # VM only tests.; VM only tests.
+
+[ $compiler == ddc && $runtime == ff ]
+closure/cycles_test: SkipByDesign # Long test to pressure GC, consistently slow and times out on FF