diff --git a/tools/run-tests/skip-always.txt b/tools/run-tests/skip-always.txt
index 0bb3dc1f..de70b6c9 100644
--- a/tools/run-tests/skip-always.txt
+++ b/tools/run-tests/skip-always.txt
@@ -69,3 +69,8 @@ x86.MonoTests.System.Threading.ThreadTest:TestStart # tends to hang on Windows
 MonoTests.System.Threading.CancellationTokenSourceTest:DisposeRace # sometimes crashes on windows
 MonoTests.System.Windows.Forms.PictureBoxTest:ImageLocation_Async # usually hangs
 make-imt-test # not intended to be run directly
+x86.pinvoke3:test_0_marshal_return_string_array_delegate # exception on Windows
+x86.pinvoke3:test_3_marshal_return_string_array_delegate_null # exception on Windows
+x86.pinvoke3:test_0_appdomain_switch # exception on Windows
+x86.pinvoke3:test_0_marshal_byref_class_delegate_null # exception on Windows
+x86.pinvoke3:test_0_marshal_struct_delegate # exception on Windows
diff --git a/tools/run-tests/windows-failing.txt b/tools/run-tests/windows-failing.txt
index 36a97074..b81b5b3d 100644
--- a/tools/run-tests/windows-failing.txt
+++ b/tools/run-tests/windows-failing.txt
@@ -5399,6 +5399,8 @@ MonoTests.System.Net.HttpListener2Test:SendCookiestoClient
 MonoTests.System.Net.HttpListener2Test:Test2
 MonoTests.System.Net.HttpListener2Test:Test3
 MonoTests.System.Configuration.SettingsPropertyValueTest:Binary_Serialize
+x86.pinvoke3:test_0_marshal_small_struct_delegate8 # clang uses incorrect return convention
+x86.pinvoke3:test_0_marshal_small_struct_delegate9 # clang uses incorrect return convention
 # unreliable:
 x86.thread-exit
 MonoTests.System.Threading.Tasks.TaskTests:DoubleWaitTest
diff --git a/tools/run-tests/windows-passing.txt b/tools/run-tests/windows-passing.txt
index f03a0342..c24d7116 100644
--- a/tools/run-tests/windows-passing.txt
+++ b/tools/run-tests/windows-passing.txt
@@ -76536,6 +76536,47 @@ MonoTests.System.Collections.Generic.ListTest:SortTestCIterSorted
 MonoTests.System.Collections.Generic.ListTest:SortTestCIterUnsorted
 MonoTests.System.Collections.Generic.ListTest:SortTestIterSorted
 MonoTests.System.Collections.Generic.ListTest:SortTestIterUnsorted
+x86.pinvoke3:test_0_marshal_byref_string_delegate
+x86.pinvoke3:test_43_thread_attach
+x86.pinvoke3:test_43_thread_attach_large_vt
+x86.pinvoke3:test_43_thread_attach_detach_contested
+x86.pinvoke3:test_43_virtual
+x86.pinvoke3:test_0_icall_delegate
+x86.pinvoke3:test_0_marshal_small_struct_delegate11
+x86.pinvoke3:test_0_marshal_array_delegate_string
+x86.pinvoke3:test_0_marshal_array_delegate_null
+x86.pinvoke3:test_0_marshal_array_delegate_null_blittable
+x86.pinvoke3:test_0_marshal_array_delegate_bad_paramindex
+x86.pinvoke3:test_0_marshal_array_delegate_unicode_string
+x86.pinvoke3:test_0_marshal_array_delegate_sizeconst
+x86.pinvoke3:test_0_marshal_array_delegate_sizeconst_paramindex
+x86.pinvoke3:test_0_marshal_array_delegate_blittable
+x86.pinvoke3:test_0_marshal_array_delegate_long_param
+x86.pinvoke3:test_0_marshal_out_array_delegate
+x86.pinvoke3:test_0_marshal_out_string_array_delegate
+x86.pinvoke3:test_0_marshal_string_builder_delegate
+x86.pinvoke3:test_55_marshal_delegate_delegate
+x86.pinvoke3:test_0_marshal_primitive_byref_delegate
+x86.pinvoke3:test_55_marshal_return_delegate_delegate
+x86.pinvoke3:test_55_marshal_delegate_ref_delegate
+x86.pinvoke3:test_0_marshal_return_string_delegate
+x86.pinvoke3:test_0_marshal_return_enum_delegate
+x86.pinvoke3:test_0_marshal_blittable_struct_delegate
+x86.pinvoke3:test_0_marshal_small_struct_delegate1
+x86.pinvoke3:test_0_marshal_small_struct_delegate2
+x86.pinvoke3:test_0_marshal_small_struct_delegate3
+x86.pinvoke3:test_0_marshal_small_struct_delegate4
+x86.pinvoke3:test_0_marshal_small_struct_delegate5
+x86.pinvoke3:test_0_marshal_small_struct_delegate6
+x86.pinvoke3:test_0_marshal_small_struct_delegate7
+x86.pinvoke3:test_0_marshal_small_struct_delegate10
+x86.pinvoke3:test_0_marshal_byref_struct_delegate
+x86.pinvoke3:test_0_marshal_out_struct_delegate
+x86.pinvoke3:test_0_marshal_in_struct_delegate
+x86.pinvoke3:test_0_marshal_class_delegate
+x86.pinvoke3:test_0_marshal_byref_class_delegate
+x86.pinvoke3:test_0_marshal_out_class_delegate
+x86.pinvoke3:test_0_marshal_string_delegate
 # unreliable:
 x86.thread-exit
 MonoTests.System.Threading.Tasks.TaskTests:DoubleWaitTest