diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -27,6 +27,15 @@
 reload(HtmlDocsBuilder)
 reload(DoxygenDocsBuilder)
 
+# These are same VM so scheduler builds on any of them.
+sanitizer_workers = [
+    "sanitizer-buildbot1",
+    "sanitizer-buildbot2",
+    "sanitizer-buildbot3",
+    "sanitizer-buildbot4",
+    "sanitizer-buildbot7",
+    "sanitizer-buildbot8",
+]
 
 all = [
 
@@ -1194,89 +1203,49 @@
 
     {'name' : "sanitizer-x86_64-linux",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot1",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-fast",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot1",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-fast",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-bootstrap-asan",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot3",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-bootstrap-asan",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-bootstrap-ubsan",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot3",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-bootstrap-ubsan",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-bootstrap-msan",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot7",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-bootstrap-msan",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-autoconf",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot7",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-autoconf",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-qemu",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot7",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-qemu",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},
 
     {'name' : "sanitizer-x86_64-linux-fuzzer",
     'tags'  : ["sanitizer"],
-    'workernames' : [
-        "sanitizer-buildbot7",
-        "sanitizer-buildbot2",
-        "sanitizer-buildbot4",
-        "sanitizer-buildbot8",
-    ],
+    'workernames' : sanitizer_workers,
     'builddir': "sanitizer-x86_64-linux-fuzzer",
     'factory' : SanitizerBuilder.getSanitizerBuildFactory()},