diff --git a/rowers/views.py b/rowers/views.py
index f5f54d29..8970722d 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -11333,7 +11333,10 @@ def workout_summary_edit_view(request,id,message="",successmessage=""
 
     work = int(normw)
     power = int(normp)
-    pace_secs = int(500./normv)
+    try:
+        pace_secs = int(500./normv)
+    except (OverflowError, ZeroDivisionError):
+        pace_secs = 140.
 
     try:
         avpace = datetime.timedelta(seconds=int(500./normv))