diff --git a/taskcluster/ci/spidermonkey/windows.yml b/taskcluster/ci/spidermonkey/windows.yml
index 855a23babd8f..6f1e7bad533b 100644
--- a/taskcluster/ci/spidermonkey/windows.yml
+++ b/taskcluster/ci/spidermonkey/windows.yml
@@ -33,9 +33,11 @@ sm-plain-win32/debug:
     treeherder:
         platform: windows2012-32/debug
         symbol: SM(p)
+        tier: 2
     run:
         spidermonkey-variant: plaindebug
         spidermonkey-platform: win32
+    run-on-projects: ['mozilla-central', 'try']
     fetches:
         toolchain:
             - win64-clang-cl
@@ -66,9 +68,11 @@ sm-plain-win32/opt:
     treeherder:
         platform: windows2012-32/opt
         symbol: SM(p)
+        tier: 2
     run:
         spidermonkey-variant: plain
         spidermonkey-platform: win32
+    run-on-projects: ['mozilla-central', 'try']
     fetches:
         toolchain:
             - win64-clang-cl
@@ -99,6 +103,7 @@ sm-compacting-win32/debug:
     treeherder:
         platform: windows2012-32/debug
         symbol: SM(cgc)
+        tier: 2
     run:
         spidermonkey-variant: compacting
         spidermonkey-platform: win32