diff --git a/rowers/uploads.py b/rowers/uploads.py
index 0104a2fd..6dd978f2 100644
--- a/rowers/uploads.py
+++ b/rowers/uploads.py
@@ -524,6 +524,9 @@ def make_private(w,options):
         return 1
 
 def do_sync(w,options, quick=False):
+    if row.duplicate:
+        return 0
+
     try:
         upload_to_strava = options['upload_to_Strava']
     except KeyError: